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Experimental work indicates that about 14% of the bromide in sea water precipitates with the halite as sea water evaporates.

实验工作证明,当海水蒸发时,海水中约有14%的化物与石盐同时沉淀。

With 2-cyano-4-nitro-aniline as raw material, 2-cyano-4-nitro-6-halogen- anilines have been prepared by direct halogenation.

以2-氰基-4-硝基苯胺为原料,用直接卤化法研制成2-氰基-4-硝基-6-氯苯胺、2-氰基-4-硝基-6-苯胺、和2-氰基-4-硝基-6-碘苯胺。

First, one of the termini of 1,3-diethynylbicyclo[1.1.1]pentane was coupled with a brominated aza heterocycle, and second, 3 equiv of the resulting extended arm were coupled with 1,3,5-triiodobenzene or 4 with 1,2,4,5-tetraiodobenzene.

第一,一个总站的1,3 - diethynylbicyclo [ 1.1.1 ]戊烷是加上化杂环字,并第二, 3相当于由此产生的延长臂被加上1,3,5 triiodobenzene或4 1,2,4,5 - tetraiodobenzene 。

Objective To outline the clinical effects of Ambroxol on preventing and treating premature infants with neonatal pulmonary hyaline membrane disease.

目的 探讨盐酸氨索对早产儿肺透明膜病的预防效果。

The paper studied the degradation rule of Bromo-Chloro-Dimethyl Hydantoin in water environment and its acute toxicity to 4 aquatic organisms(Photobacterium phosphoreum, Chlorella vulgaris, Daphnia magna Straus and Brachydanio rerio).

研究了新型消毒剂氯海因在水环境中的降解规律及其影响因素以及BCDMH对4种不同生态位水生生物(发光菌、小球藻、大型溞和斑马鱼)的急性毒性。

Objective To study the effects of hydrochloric acid ambroxol injection on the premature pneumonia.

目的探讨盐酸氨索针剂治疗早产儿肺炎的疗效。

Then a few kinds of compounds with good corrosion inhibition effect have been got in hydrofluoric acid solution.

选取这几类化合物中的硫脲、硫氰酸钠、丙炔醇和代十六烷基砒啶分别作为研究对象。

Reducing agent and to supply a reducing atmosphere; to make hydrogen chloride and hydrogen Bromide; and in

氢气主要用于氨、乙醇、苯胺和甲醇的合成;石油燃料的脱硫;也是一种还原剂和补充减少中的大气;制备氯化氢和化氢;还用于有机化合物的氢化。

"It is used to synthesize ammonia, ethanol, aniline, and methanol; to treat petroleum fuels; as a reducing agent and to supply a reducing atmosphere; to make hydrogen chloride and hydrogen Bromide; and in hydrogenation (e.g., of fats)."

氢气主要用于氨、乙醇、苯胺和甲醇的合成;石油燃料的脱硫;也是一种还原剂和补充减少中的大气;制备氯化氢和化氢;还用于有机化合物的氢化。

" It is used to synthesize ammonia, ethanol, aniline, and methanol; to treat petroleum fuels; as a reducing agent and to supply a reducing atmosphere; to make hydrogen chloride and hydrogen bromide; and in hydrogenation (e.g., of fat s)."

氢气主要用于氨、乙醇、苯胺和甲醇的合成;石油燃料的脱硫;也是一种还原剂和补充减少中的大气;制备氯化氢和化氢;还用于有机化合物的氢化。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。