coal cutting 采[截]煤。
采[截]煤。 “coal“ 中文翻譯: n. 1.煤,煤塊,煤堆。 2.〔pl.〕〔美國〕(一堆 ...“cutting“ 中文翻譯: n. 1.切斷,切下;切片;【園藝】扦插,插條;〔英國〕 ...“coal cutting machine“ 中文翻譯: 截煤機“coal cutting pick“ 中文翻譯: 挖煤鎬“disc coal cutting machine“ 中文翻譯: 圓盤式載煤機“coal“ 中文翻譯: n. 1.煤,煤塊,煤堆。 2.〔pl.〕〔美國〕(一堆)燒紅的煤。 3.〔常 pl.〕〔英國〕(幾塊)供燃燒的煤。 4.木炭。 broken coal碎煤。 brown coal褐煤。 craw [crow] coal劣煤。 hard coal〔美國〕無煙煤,硬煤。 small coal煤屑。 soft coal〔美國〕煙煤。 white coal(發電用的)水力。 a live coal通紅的火炭。 a cold coal to blow at 無成功希望的工作。 blow hot coals 暴怒。 blow the coals 嗾使,唆使,挑唆,煽動。 call [haul] over the coals 申斥,譴責。 carry [bear] coals 做低三下四的工作;甘受屈辱 (Gregory, on my word, we'll not carry coals. 格列高里,我們絕對不能忍辱受屈呀)。 carry [send] coals to Newcastle 多余的舉動,徒勞無益〔Newcastle 是產煤地〕。 heap [cast, gather] coals of fire on sb.'s head 使某人痛苦[慚愧]難當。 stir coal挑撥(是非)。 take in coal上煤(到船內)。 take [rake, drag] over the coals=call over the coals. vt.,vi. 1.(給…)上煤,(給…)加煤。 2.(把…)燒成炭。 “of coal“ 中文翻譯: 煤氣化“on coal“ 中文翻譯: 靠近煤礦“are cutting“ 中文翻譯: 電弧截割“by cutting“ 中文翻譯: 開路般穿過“cutting“ 中文翻譯: n. 1.切斷,切下;切片;【園藝】扦插,插條;〔英國〕剪裁,(報紙等的)剪輯;(寶石等的)加工,琢磨,開鑿。 2.大賤賣;劇烈的競爭。 3.【林業】采伐;【畜牧】剪毛。 4.(馬的)互踢。 5.【機械工程】切削。 cutting into the womb 剖腹產術。 adj. 1.切得動的,銳利的。 2.像刀割似的;刺骨的。 3.諷刺的,尖酸刻薄的。 4.(目光)炯炯的,敏銳的。 5.〔俚語〕賣得賤的。 cutting wind 刺骨的寒風。 cutting retort 尖銳的反駁。 cutting trade 薄利多銷。 adv. -ly “cutting in“ 中文翻譯: 切入; 切深“cutting-in“ 中文翻譯: 沖入; 切入; 切深“bottle coal; gas coal“ 中文翻譯: 氣煤“charred coal; coking coal“ 中文翻譯: 焦煤“coal price, coal tariff“ 中文翻譯: 煤價“coal-hole; coal house“ 中文翻譯: 煤庫“unprocessed coal; raw coal“ 中文翻譯: 原煤“liberation-cutting; cleaning cutting“ 中文翻譯: 除伐“a boatful of coal“ 中文翻譯: 一船煤“a coal cellar“ 中文翻譯: 地下煤窖“a hot coal“ 中文翻譯: 一塊燒紅的煤“a piece of coal“ 中文翻譯: 一塊煤“a shovel of coal“ 中文翻譯: 一鍬煤“abandoned coal“ 中文翻譯: 遺留煤
coal drop |
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The frozen coal destruction is the tension stress destroys , and establish the frozen coal cutting model in this foundation , obtains the cutting force , feeding force , tooth spacing according to the smallest energy principle . bring forward a rotary drilling mothod to unload the frozen coal , the broken ability is strong , without frozen depth limits , then obtains this machine working parameters , has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader 凍煤破壞是拉應力破壞,在此基礎上建立了凍煤的切削模型,根據最小能量原理得到截割力,進給力和截齒間距的計算公式,分析得到截割力與切削厚度成正比,隨著前角的增大而減小;截齒最優截距與截齒尺寸有關且與切屑厚度成正比;進給力隨著截齒前角增大而增大的規律。 |
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Abstract : because the kinds , structure , storage and stratification of coal are different , it is difficult to analyze the effect factor on coal cutting power . based on a lot tests , the change rule of cutting parameter with cutting power is discussed , it is an important basis for designing , researching and selecting mining equipment , prcessing and technical reform 文摘:由于煤炭的種類、結構、賦存和層理的不同,給分析影響煤炭切削力因素帶來了困難,在大量實驗的基礎上,討論了切削力隨切削參數的變化規律,為設計、研究、選擇采掘設備、開采工藝、技術改造提供了重要依據。 |
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The results indicate that a stable deformation localization band occurs in the coal cutting course and develops to macroscopic crack ; the deformation localization band is slantwise ; while the cutter tooth is used , the deformation localization develops slowly , and the localization becomes wider and the strain value in the band area higher afterwards ; when the point - attack pick used the localization develops quickly and the localization band becomes narrow and the strain value in the band lower 研究表明:截齒截割煤體過程中,煤體出現穩定的變形局部化帶,且最終發展為宏觀裂紋;煤體變形局部化帶為一個傾斜帶:刀齒截割時,變形局部化發展較慢,但產生變形局部化后,局部化帶寬且帶內應變值較高;而鎬齒截割時,變形局部化發展較快,但產生局部化后,局部化帶窄且帶內應變值不如刀齒高。 |
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Because the kinds , structure , storage and stratification of coal are different , it is difficult to analyze the effect factor on coal cutting power . based on a lot tests , the change rule of cutting parameter with cutting power is discussed , it is an important basis for designing , researching and selecting mining equipment , prcessing and technical reform 由于煤炭的種類、結構、賦存和層理的不同,給分析影響煤炭切削力因素帶來了困難,在大量實驗的基礎上,討論了切削力隨切削參數的變化規律,為設計、研究、選擇采掘設備、開采工藝、技術改造提供了重要依據。 |
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An improved mode of coal cutting is recommended aiming at the specifical status of surface collapse of coal field in yanzhou city , and several control policies on restoration and reclamation of collapsing land are also put forward 針對兗州礦區的具體塌陷狀況提出了改進采煤方式、對塌陷土地進行恢復和復墾等幾點防治措施。 |
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Drill bit for coal cutting 電煤鉆頭 |