查询词典 salts

Asbestos is a natural mineral consisting of salts of hydrous silicates fibrous shape. It can be classified into two groups:（1） serpentine that includes chrysotile, etc.;（2） amphibole that includes amosite, crocidolite, anthophyllite, actinolite and tremolite, etc.

石绵为一群水合纤维状矽酸盐矿物之总称主要分成蛇纹石与角闪石两大类，蛇纹石又以白石绵为代表，角闪石则有青石绵、褐石绵、斜方角闪石、透闪石与扬起石等。

A new method for the direct synthesis of α-acyl methylenetriphenyl-arsoranes from readily available arsonium salts was afforded.

提供了一个由α-位具有强吸电子取代基的鉮盐一步合成α-酰基胂叶立德的新方法。

In addition, the existence of metallic atoms makes the phenol oxygen atoms more reactive which may be one of the reasons that alkali metal salts are more sensitive than TNPG.

同时， 金属离子的引入增大了酚羟基上的氧原子的活性，这也可能是导致碱金属盐比TNPG敏感的原因之一。

Some works were also made on effect of alkaline-earth metal salts on mortar strength and cement setting.

此外，同样研究了碱土金属盐对砂浆强度和水泥凝结时间的影响。

Objective To study the changes of serum salts and alkaline phosphatase in patients with jaw fractures and its roles.

目的 研究颌骨骨折后血清无机盐和碱性磷酸酶的变化和意义。

In this dissertation, the stable radical cation salts ofphenothiazine and 10 - alkylphenothiazine alky=〓(〓 hexachloroantimonate,perchlorate and iodide were prepared by one- electron oxidationwith 2,2,6,6-tetramethyl - 4 -acetyloxypiperidine oxoammoniumhexachloroantimonate, perchloric acid/hydrogen peroxide andmolecular iodine respectively, and they were characteried by UV -Vis spectroscopy and ESR spectroscopy.

本文的主要内容有：吩噻嗪和10-烃基吩噻嗪分别被碘、高氯酸／过氧化氢，2，2，6，6-四甲基-4-乙酰氧基哌啶氧铵六氯锑酸盐氧化为相应的正离子自由基碘盐、高氯酸盐、六氯锑酸盐，并用UV-Vis光谱和ESR波谱进行了鉴定和研究。

Alkylamine reaction with dialkyl cyanodithioiminocarbonate was catalyzed by quaternary ammonium salts at room temperature to yield 3-alkylamine-5-amino-1,2,4-triazole in good quality and high yields. After imidization and reaction with an α,β-unsaturated acid derivative, the reaction intermediate was hydrolyzed in the presence of a Lewis acid to obtain the target product.

烷基胺与氰基亚胺硫代二甲酯在季氨盐催化作用下得到质量好、收率高的3-烷氨基-5-氨基-1，2，4-三氮唑，进一步经过亚胺中间体并与α，β-不饱和酸酯作用后，中间产物在Lewis酸催化作用下水解得到三唑嘧啶酮。

The fragmentations of alkylamine ions C~nH~2~n~+~1NH~2^+ produced from 18 kinds of alkylamine salts by the electron impact ionization and protonated alkylamine C~nH~2~n~+~1NH~3^+ produced from them by the chemical ionization were examined using collision- induced dissociation.

应用碰撞诱导解离技术研究了电子轰击方法产生的脂肪胺分子离子和化学电离方法产生的质子化脂肪胺分子的碎裂反应。

If it is other chemical components of the salts, we must speak to their specific trade names or chemical names, such as soda ash, baking soda, red alum, ammonium sulfate, potassium nitrate, potassium chloride, diammonium phosphate, etc., must can not be generally called "industrial salt" or "chemical salt."

如果是其他化学成分的盐类，一定要说出其特定的商品名称或化学名称，如纯碱、小苏打、红矾、硫酸铵、硝酸钾、氯化钾、磷酸氢二铵等，绝不能笼统叫"工业盐"或者"化工盐"。

A carbonate of ammonium; used in the manufacture of smelling salts and baking powder and ammonium compounds.

铵的碳酸盐，用于制造嗅盐、发酵粉和铵的化合物。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。