bivalent adj.1.【化學】二價的。2.【生物學】二價染色體的。...
adj. 1.【化學】二價的。 2.【生物學】二價染色體的。 短語和例子bivalent chromosome 二價染色體。 n. 【生物學】二價染色體。 “asymmetrical bivalent“ 中文翻譯： 不對稱二價體“bi-bivalent“ 中文翻譯： adj. 【化學】雙二價的。 “bivalent -tibody“ 中文翻譯： 二價抗體“bivalent antibody“ 中文翻譯： 二價抗體; 雙價抗體“bivalent atom“ 中文翻譯： 二價原子“bivalent base“ 中文翻譯： 二元堿“bivalent catio“ 中文翻譯： 二價陽離子“bivalent cation“ 中文翻譯： 二價陽離子; 二階陽離子“bivalent chromosome“ 中文翻譯： 二價染色體; 二連染色體; 雙價染色體“bivalent element“ 中文翻譯： 二價元素“bivalent hydrocarbons“ 中文翻譯： 二價烴類“bivalent immunization“ 中文翻譯： 雙價免疫接種“bivalent interlocking“ 中文翻譯： 雙價互鎖“bivalent ion“ 中文翻譯： 二價陽離子“bivalent metal“ 中文翻譯： 二價金屬“bivalent radical“ 中文翻譯： 二價基“bivalent redical“ 中文翻譯： 二價基“bivalent releaser“ 中文翻譯： 二價釋放刺激“bivalent segmer“ 中文翻譯： 二價鏈節“c bivalent“ 中文翻譯： 秋水仙堿二價體“heteromorphic bivalent“ 中文翻譯： 異形二價體“homomorphic bivalent“ 中文翻譯： 同型二價體; 同形二價體“inversion bivalent“ 中文翻譯： 倒位二價體“unequal bivalent“ 中文翻譯： 不等二價染色體“bivalence“ 中文翻譯： n. 【化學】雙化合價，雙原子價，二價 (＝ bivalency)。 “bivalant“ 中文翻譯： 雙價體
bivalve |
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The fluorescence intensity of the phosph atase increased , followed by a decreasing process , in the temperature region of 40 - 90 c . the enzyme was inhibited by naf significantly and the fluorescence spectra of the protein were influenced obviously by the concentration of naf . the data from our experiments showed that the bivalent cations can modulate the activity of the phosphatase but maybe is independent of the tertiary structure Edta對此種磷酸酣酶也有抑制作用，因此用7種二價陽離子處理磷酸酷酶，發現不同金屬二價陽離子對這種磷酸酷酶活性和熒光發射光譜的影響不同，因此二價陽離子調控此酶活性，但可能與熒光光譜所反映的三級結構變化無關。 |
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In this article , the highly - efficient plant vectors with bivalent genes have been constructed by combining the gene of vhb with bt gene and cfmcryla - cpti gene respectively , studying the influence over the plants metabolic level and growth . we manage to reach the goal of increasing the yield of transgenic plants and cultivate new plant varities with pest - resistance by applying transgenic approaches , and eventually in the hope of cultivating new varities of crops with hoth highly - steady - yield and pest - resistance 本文嘗試將透明顫菌血紅蛋白( vhb )基因優化、人工合成并且分別和gfmcryia ( bt )基因、融合殺蟲基因( bt - cpti )構建成雙價基因植物高效表達載體，導入煙草，研究該基因對植物代謝水平和植物生長的影響，嘗試通過基因工程育種技術增加轉基因作物產量的同時，雙可使其具有抗蟲性，以期望培育出高產、穩產又具有抗蟲效果的新品種。 |
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In order to investigate the effects of ph , temperature , naf and bivalent cations on the conformation of the phosphatase in solution , we monitored the difference of intrinsic fluorescence of the phosphatase and compared changes of the enzyme activity under those conditions . the tertiary structure loosed and the intensity of fluorescence decreased below ph 6 . 0 . the intensity of fluorescence was lowest at ph 5 . 0 and the tertiary structure was reconstructed as the solution ph was increased 其中在ph5 . 0及以下時，蛋白質的三級結構變得松散，熒光強度下降， ph5 . 0時尤為顯著，而當溶液ph高于5 . 0時(酶的最適ph ) ，樣品的熒光發射強度明顯增加，表明酶蛋白受溶液酸堿度的影響，構象發生部分變化，部分trp殘基向疏水環境移動，其三級結構得到恢復。 |
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The experimental results show that the cycle of the mother liquid increases the yield of the product , the seed crystal can improve long - diameter ratio remarkably , the proper additive reduces the speed of crystal growth and make size distribution homogenize . through appending different seed crystal and bivalent lead at one time , we may receive when the content of the seed crystal is 0 . 075 % and pb2 + is 20 - 50ppm , the yield of the basic magnesium chloride whisker is high and crystal shape is good . the surface active agent can improve dispersion performance of the basic magnesium chloride whisker 研究結果表明：母液循環可以提高堿式氯化鎂晶須的產率；添加晶種可明顯的改善晶形；合適的添加劑可以降低晶體生長速度并可提高晶須的粒徑分布；而同時加入不同用量的晶種和pb ~ ( 2 + ) ，試驗結果表明晶種含量在0 . 075 ， pb ~ ( 2 + )在20 50ppm時，晶須的產率高，晶形好；表面活性劑對產品的分散性能有所改進。 |
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The growing graphs of e . coli bl21 containing pbv221 and pbv221svhb according to the od600 values showed that the e . coli vgb + grew faster 4 the highly - efficient bivalent vectors which are named pgbif4abcvhb and pgbi4asvhbbt respectively , havfs been . su ? essful ] y constructed . the tobacco leave discs were transformed with agrobacterium tumefaciens carrying the plant expression vectors pgbif4abcvhb and pgbi4asvhbbt . 38 and 36 transgenic tobacco plants have been obtained respectively after kanamycin screening , pcr detection , southern blot analysiss showed that the foreign genes have been inserted into the tocacco plant genome . the expression of 16kd vhb protein in transgenic plants was proved by western blot 4構建了雙價基因高效植物表達載體pgbif4abcvhb和pgbi4asvhbbt 。通過農桿菌介導法，將這兩個雙價基因高效表達載體導入煙草，分別獲得了38 、 36株陽性轉基因植株。經pcr 、 southernblot分子生物學方法分析，證明vgbm ， bt基因、 bt - cpti基因已整合到煙草基因組中， westernblot證明vgbm成功地表達出16kd的vhb蛋白。 |
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On the basis of catalyzing mechanism , it can raise the reaction efficiency of sodium sulfite and reduce the remains of sodium sulfite , and has evident catalyzing action by adding bivalent nickel ions and bivalent cobalt ions into the water under the condition of weak alkali 根據催化機理，在弱堿條件下加入二價鎳離子和二價鈷離子能提高水中亞硫酸鈉的反應效率，降低水中亞硫酸鈉的殘余量，對亞硫酸鈉的除氧效果具有明顯催化作用。 |
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In general , bu is used to negate non - verbs , zero - valent verbs and monovalent verbs , while though fu is often used to negate bivalent verbs and trivalent verbs , bu can also be used to negate these two verb types 一般說來，非動詞、零價動詞、一價動詞要用不來否定，而二價動詞、三價動詞常用弗來否定，但也可以用不來否定。 |
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On the basis of distinctions of verbal valency , verbs used within oracle inscriptions can be divided into the following four categories : zero - valent verbs , monovalent verbs , bivalent verbs and trivalent verbs 摘要甲骨文中的動詞可以根據其配價的不同分成以下四類，即零價動詞、一價動詞、二價動詞、三價動詞。 |
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A charged mosaic membrane with ideal selectivity has apparently advantage over the conventional nanofiltration ( nf ) membrane , which can be used to concentrate the monovalent salts and bivalent salts 我們知道，傳統的納濾膜僅僅能透過一價鹽，而在化學工業中對于二價鹽的選擇性傳遞有時尤為重要。 |
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The different bivalent cations with the same final concentration were put into the dnaase reacting system for 15 minute at ph5 . 4 , at 41 , then dnaase ' s activity unit was detected 在dna酶的酶促反應體系中加入終濃度相同的二價金屬陽離子41下、 phs 4準確反應15分鐘后測定酶的活力單位。 |
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It is well known that nf membrane can only desalinate monovalent salts . however , the separation of bivalent salts from water - soluble organics is very important in modern chemical industry 荷電鑲嵌膜可用于一價、二價電解質的濃縮及有機原料的脫鹽，其膜通量接近于工業納濾膜的水平。 |
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Lead in the environment exists as bivalent lead ion ( pb2 + ) , so the research and development of a sensitive chemical sensor of pb2 + has brought more and more attention around the world 環境中的鉛大都以pb2 +的形式存在,所以設計pb2 +的化學傳感器備受人們關注。 |
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Presently two preparations of meningococcal vaccines are registered in hong kong - the bivalent serogroups a c and the quadrivalent serogroups a , c , y w135 二價疫苗可以預防a型和c型腦膜炎雙球菌，四價疫苗則可以預防a c w135和y型腦膜炎雙球菌。 |
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Terminalization the movement of chiasmata to the end of the bivalent arms , a process that may occur during late prophase i of meiosis 交叉)移端：發生在第一次減數分裂后期，染色體交叉向二價體染色體臂的末端移動的過程。 |
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Construction , expression and antigenic study of bivalent vaccine candidate with 26 000 omp and heat short protein a of human helicobactor pylori 人幽門螺桿菌26 000外膜蛋白與熱休克蛋白雙價疫苗的構建和表達及抗原性研究 |
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Heating installations for different sources of energy ; use of heat pumps including electrically operated compressors in bivalent heating installations 不同能源用采暖設備.第2部分:二價采暖設備的熱力泵包 |
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Methods of soil investigations for agricultural engineering - chemical laboratory tests - part 7 : determination of readily soluble bivalent iron 農業工程中土壤調查研究方法.化學實驗室試驗.第7部分 |
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Sax found average chiasma frequencies of 2 . 3 to 2 . 5 per bivalent in pines and larches Sax發現松樹和落葉松每條二價染色體的平均交叉頻率是2 . 3 2 . 5 。 |
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Study on the color reaction of fe2 - 5 - br - padap - op and determination bivalent amp; amp; trivalent ferrum in water 顯色反應的研究及水中價態鐵的測定 |