合适的有机亚胺反应剂具有多种组成和结构。
The suitable organic imine reactants have a variety of compositions and structures.
通过测定反应剂中酚的浓度，得到酚单体消耗速率，从一个侧面探索了反应速率。
By determining the concentration of phenol in reactants, the consumption rate of phenol monomer was obtained, and the reaction rate was reflected from one aspect.
对分别选用氨水、纯氨及尿素作反应剂的SNCR脱硝系统的优缺点进行了比较。
Advantages and disadvantages of the SNCR denitrification systems were separately compared by using different reactants, such as aqueous ammonia, anhydrous ammonia and urea etc.
由于它化学性质极端活泼，所以几乎不把它作为金属使用(除了做化学反应剂)。
It is a soft, silvery white metal, not found free in nature and rarely used as the metal (except as a chemical reagent) because of its extreme reactivity.
以蛋壳为原料，磷酸钙为反应剂，采用煅烧合成工艺，可简单快速地制备羟基磷灰石（HA）粉体材料。
The hydroxyapatite (HA) powders were simply and rapidly prepared from the eggshells and calcium phosphate by the sintering synthesis process.
然后通过设计实验，研究了反应剂浓度，反应温度，反应压力等各反应条件对介质薄膜的影响，以及不同反应条件下淀积形貌的特点。
Experiments are designed to study the effects of precursor concentration, reaction temperature and pressure on deposition film properties, and the deposition profile under different conditions.
每年，有5000人会对麻醉剂产生致命的不良反应。
Every year, 5,000 people have life-threatening reactions to anaesthetics.
许多人对某些亚硫酸盐有过敏反应，包括那些通常作为防腐剂添加到葡萄酒中的亚硫酸盐。
Many people suffer an allergic reaction to certain sulfites, including those that are commonly added to wine as preservatives.
TCS注射剂（26KD）无抗肿瘤作用，但在过敏反应中呈阳性反应。
TCS injectant(26KD) has no antitumor effects, but has a positive reaction in the allergic reactions.
经五步反应合成得到磺酰脲类除草剂玉嘧磺隆。
Sulfonylurea herbicide Rimsulfuron was synthesized by a five-step reaction.
以三乙基铝（茶）和甲基溴为原料，在铁-锑络合物催化剂上反应合成了三甲基铝（TMA）。
Trimethylaluminum(TMA) was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
在反应中，这些碎片起一种媒剂的作用。
整个最初的核反应循环是这样的——高压管、管道、泵、冷却剂(水)——这些被安装在容器型建筑中。
The entire primary loop of the nuclear reactor - the pressure vessel, pipes, and pumps that contain the coolant (water) - are housed in the containment structure.
像磺化的兽脂（动物脂肪往往与硫磺酸发生化学反应）这样润湿剂被加入到其中。
Then wetting agents are added such as sulfonated tallow -- animal fats chemically reacted with sulfuric acid.
这种轻微过敏反应常常和作为防腐添加剂的亚硫酸盐有关联。
This mild allergic reaction is often blamed on preservative chemicals called sulphites, but they are responsible for only an eighth of cases.
例如，金不会起反应，但是在纳米尺度上它就成为了反应的催化剂。
For example, gold is nonreactive but at the nanoscale it becomes a catalyst for reactions.
石墨是很好的减速剂，减慢中子并且让它们的反应保持在一个适当的温度范围内。
Graphite is a great moderator, slowing down the neutrons and keeping their reaction in the proper temperature range.
这种酶可以粘附到细胞的表面然后和一种添加的样本上的染色剂反应。
This gets stuck on the cell's surface and then reacts with a stain that is added to the sample.
所以在反应堆里，典型的慢化剂,热能反应堆是氘和氢。
So typical moderators in reactors thermal reactors are deuterium and hydrogen.
这种在《科学》杂志里所报道的装置使用一个标准的抛物柱面镜把阳光搜集进一个反应室。在这个反应室里，铈氧化物催化剂可以分解水和二氧化碳。
The device, reported in the journal Science, uses a standard parabolic mirror to focus the sun's rays into a reaction chamber where the cerium oxide catalyst breaks down water and carbon dioxide.
它需要进行一个被称作“酯交换”的过程，就是在催化剂的作用下，将咖啡渣与乙醇进行反应。
It employs a process called transesterification, which reacts the grounds with an alcohol in the presence of a catalyst.
到目前为止，大部分方式还在依赖象铱那样不实用的稀有原料作为引发反应的催化剂。
Until now, most approaches relied on impractically scarce materials like iridium as a catalyst that triggers the reaction.
该团队认为，不必把氮氧化物清除掉，而是利用它作为催化剂，促进化学反应的进程。
Instead of getting rid of the NOx the team believe they can use it as a catalyst to help power the reaction.
这些中子从核反应堆中产生，在减速剂的作用下减到难以置信的低速。
The neutrons are created in a fission reactor, and slowed to incredibly low speeds by materials known as moderators.
但在那种情况下，也需要催化剂去加快足够的反应速度，以解释乙炔的缺失。
But in that case, too, a catalyst would be needed to boost reaction rates enough to account for the dearth of acetylene.
然后，反应堆冷却剂存货会减少。
马洛尼说，安慰剂组的周长减少是典型的安慰剂反应的反映。
Maloney says the reduction in the placebo group is a reflection of thetypical placebo response.
他们发现糖就像兴奋剂一样，让细菌的正常反应得以恢复，从而使它们对抗生素的攻击更为敏感。
They found that sugar ACTS as a stimulant that switches on normal bacterial responses, rendering the bugs vulnerable to antibiotic attack.
他们发现糖就像兴奋剂一样，让细菌的正常反应得以恢复，从而使它们对抗生素的攻击更为敏感。
They found that sugar ACTS as a stimulant that switches on normal bacterial responses, rendering the bugs vulnerable to antibiotic attack.
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