Slow reaction substance of anaphylaxis(SRS-A) release from lung tissues of the sensitized guinea pigs after antigen challenge was examined by bioassay.
用生物检定法评价两者对致敏豚鼠肺组织抗原攻击释放过敏性慢反应物质（SRS-A）的抑制作用；
Sometimes it overreacts to what should be a perfectly innocuous food or other substance, causing an allergic reaction.
有时，它会对某种完全无害的食物或其它物质产生过度反应，导致过敏反应。
When the substance enters the human body, it forces a reaction which the hybrid molecule itself controls.
当这种物质进入到人体，所发生的反应就会受这种合成分子的控制。
To produce or obtain (a compound) from another substance by chemical reaction.
通过化学反应从别的物质生成或得到(某种化合物)。
A chemical substance that prevents or slows a cathodic or reduction reaction.
一种阻止或减缓阴极反应的化学物质。
An allergy is an unusually strong reaction to a substance.
过敏是对于一种物质的异常强烈反应。
The general substance and oxygen oxidation, the individual may absorb heat, such as the reaction of nitrogen and oxygen. Anodic oxidation and cathodic reduction in electrochemical process.
一般物质与氧气发生氧化时放热，个别可能吸热如氮气与氧气的反应。电化学中阳极发生氧化，阴极发生还原。
Latest developments of electrochemical cells based on chemical or electrochemical reaction of aluminium with other substance at home and abroad are introduced in detail.
详细介绍了当前国内外应用铝材料与其它物质发生化学或电化学反应以作为化学电源的最新研究进展。
A substance produced in a reaction in addition to the required product.
反应中除了所要的产物以外所产生的物质。
In this paper, the concepts and the applications of amount of substance and extent of reaction have been discussed.
本文对化学教学中的物质的量和反应进度的概念和应用进行了讨论，并对它们之间的联系和区别进行了辨析。
From epistemology, information is space-time order of inner-logic which substance shows in its reciprocity, putting up forms of substance, of motion, of gene, of reaction, and of consciousness.
从认识论视角看，信息是物质在相互作用过程中表达出来的内在逻辑的时空序，表现为实体态信息、运动态信息、基因态信息、反应态信息和思维态信息等五个层次。
In this paper some formulas to calculate the mass percentage of all sort of compound in and rock salt and mirabilite were created on the reaction rule of equal amount of substance.
本文以等物质的量的反应规则建立了岩盐、芒硝中各种化合物的质量分数的计算公式。
A substance exhibiting unusual chemical activity, which enables it to set in motion, or induce, a chemical reaction such as polymerization, oxidation, or detonation.
具有异常化学活性的物质，能起动或引发化学反应，如聚合、氧化或爆震。
Results: the parietal cells in gastric epithelial cells appeared DHEA positive immune reaction. The positive substance was distributed in the cytoplasm and negative in the nuclei.
结果：大鼠胃小凹上皮细胞、胃底腺壁细胞呈DHEA免疫反应阳性，阳性物质分布于胞质内，胞核阴性。
A catalyst is a substance which speeds up a chemical reaction.
催化剂是一种能加速化学反应的物质。
It is for that reason that desensitization to some substance to which an individual may be sensitive must be carried out very carefully and in such small doses that a severe reaction is not provoked.
正是由于这种原因，对某种可能引起个体敏感的物质，在进行脱敏时，必须谨慎从事，应当采用小剂量，以免激发严重反应。
Nitrobenzenes compound is the high poisonous substance which is difficult to be biodegraded and can inhibit and poison biochemical reaction.
摘要硝基苯类化合物是高毒性物质，难以生物降解且对生化反应有抑制和毒害作用。
Subsequently, a reducing or oxidizing substance derived from the analyte is caused to generate, and the amount thereof is measured by the REDOX reaction.
随后，产生衍生自分析物的还原性或氧化性物质，其量通过氧化还原反应进行测量。
One, known as a photoallergic reaction, occurs when a certain medicine or substance is applied to the skin.
更为常见的是一种光毒性反应，这种情况发生于人体摄入某种药物或物质再接触阳光后。
The best reaction process conditions as proportion of reacting substance and reaction time, which affected the production rate, were examined.
用红外分光光度计对合成产物进行结构表征，并分析合成反应机理。
Catalyst: Any substance of which a small proportion notably affects the reaction rate of a chemical reaction without itself being changed or consumed.
酶：在活性生物体中起催化剂作用的物质，它调节化学反应中的反应速率而自身不被改变。
The influences of the factors, such as ethanol solution, sodium hydroxide, propylene oxide, reaction temperature, reaction time on apparent viscosity and water insoluble substance of HPG are studied.
研究了合成过程中乙醇溶液、氢氧化钠、环氧丙烷、反应温度、反应时间等因素对产品表观黏度和水不溶物含量的影响。
A substance, which can affect cl reaction including the change of intensity, rate and wavelength, can be determined by cl method.
任何能影响化学发光反应，引起发光强度、速度和波长发生改变的物质都能成为化学发光法的分析对象。
Any change which alters the chemical properties of a substance is a chemical change. For example, the rusting of iron is a chemical reaction.
任何改变物质化学性质的变化都是化学变化。例如，铁钉的生锈就是一种化学变化。
The CT-positive substance was located in cytoplasm and the nucleus presented negative reaction. mRNA hybridization signals were detected in the same cells , which were also distributed in cytoplasm.
结果 大鼠颌下腺上皮细胞呈CT免疫反应阳性，阳性物质分布于胞质，胞核呈阴性反应。
Secondly, the enthalpy of elementary substance under standard state is defined as the criterion of component enthalpy, thus reaction heat is no longer needed in energy balance.
其次，热量衡算时，将标准状态下单质的焓定义为所有组分的基准焓，不再需要反应热数据。
The results suggest that if Cu layer is too thin, the eutectic substance created from eutectic reaction is little, it can not fill the seam and the areas of joints are empty;
结果表明：铜层过薄，共晶反应生成的液相量太少，未能填满缝隙，接头有空洞出现；
It generates simple substance arsenic by reduction reaction in the colloid system with the existence of protection agent that plays a role of bi-template, dispersing and stabilizing simple substance.
其制备方法是在保护剂存在的胶体体系中，将砷化合物加还原剂还原形成单质砷。
It generates simple substance arsenic by reduction reaction in the colloid system with the existence of protection agent that plays a role of bi-template, dispersing and stabilizing simple substance.
其制备方法是在保护剂存在的胶体体系中，将砷化合物加还原剂还原形成单质砷。
应用推荐