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quaternary adj.1.四個一組的;由四部份組成的;第四的。2.【化...

quaternion

In this paper , several questions about quaternary codes and their generalization are discussed 本文討論了四元線性碼及其推廣中的幾個問題。

Standard test method for disinfectant quaternary ammonium salts by potentiometric titration 用滴定計滴定法測定氨基鹽消毒要素的標準試驗方法

Determination of the contents of quaternary ammonium salts by means of potentiometric titration 高氯酸滴定法測定摻雜味精中谷氨酸鈉的含量

Flocculant action of chitosan quaternary ammonium for treating monosodium glutamate - producing wastewater 殼聚糖在生活污水處理中的應用

The stratigraphy of heavy minerals and its significance in quaternary period , changzhou , jiangsu 江蘇常州地區第四紀重礦物地層及其意義

Comparative study on the origin of quaternary red earth in jiujiang and taihe , jiangxi province 江西九江泰和第四紀紅土成因的比較研究

The bearing load characteristic of large diameter and super - long pile bored pile in quaternary soil 第四系土層大直徑超長樁的承載特性

The heavy minerals in quaternary strata and its stratigraphic significance in luzhi , jiangsu province 蘇州直第四紀重礦物地層及其意義

Gold stripping from loaded organic phase in quaternary amine system by glycol and diglylenethioether 季銨鹽載金有機相的反萃取研究

Late quaternary slip - rate on the altun fault west to the qarqan river 西秦嶺北緣斷裂帶黃香溝段晚第四紀水平位移特征及其微地貌響應

Quaternary phase shift 四相相移

Revelation of information on genesis of multi paleosol from quaternary loess profile 第四紀黃土剖面多元古土壤形成發育信息的揭示

Late - quaternary activity and slip rate of the western qinling fault zone at huangxianggou 研究還揭示沿康西瓦斷裂發育了一條長約

Preparation of stearic acid with heteropoly quaternary ammonium as phase transfer catalyst 雜多季銨鹽相轉移催化制備十八酸

Study on toxicity and mutagenic effects of quaternary ammonium compound detergent 季氨化合物洗消劑的毒性及致突變作用研究

Late quaternary stratigraphy and evolution of the changjiang delta , china 晚第四紀古河口灣的發育及有關的資源環境問題。

Test methods for acid value and amine value of fatty quaternary ammonium chlorides 脂族季銨氯化物中酸值和胺值的測試方法

Quaternary information industry 第四產業

Study on fully mechanized caving under porosity aquifer in quaternary period 煤礦斜井架空人車自動控制裝置的試驗研究