spontaneous reaction
英 [spɒnˈteɪniəs riˈækʃn]
美 [spɑːnˈteɪniəs riˈækʃn]
网络 自发反应; 自发的反应; 自然反应
双语例句
- Spontaneous photons initiate stimulated emission and the chain reaction begins.
自发发射的光子引起受激发射，开始了链式反应。 - The absorption process is a spontaneous endothermic reaction. Accordingly, adequate drop of bed temperature is helpful for the absorption.
吸附过程是自发进行的吸热反应，适当降低床层温度有利于吸附过程。 - The reaction of coal spontaneous combustion to produce ethylene is a spontaneous reaction judging by the reaction activation energy.
由反应活化能可知，生成乙烯的反应是一个自发式反应。 - When people saw pictures of the atrocities on tv, there was a spontaneous reaction against the war.
当人们在电视中看到残暴画面时，会自然产生一种反战的反应。 - H was negative. The sorption process was spontaneous exothermic reaction.
H为负值且较大，其吸附过程为自发的放热反应。 - Possibility reaction mechanism was proposed, which could be used to explain the spontaneous termination reaction in anionic polymerization of butadiene in the presence of polar additives.
对这些破坏活性中心的反应所提出来的反应机理，可以用于解释丁二烯阴离子聚合中的自发终止现象。 - Effects of Calcium Ion Concentration on Spontaneous Acrosome Reaction of Rat Spermatozoa
钙离子浓度对大鼠精子自发性顶体反应的影响 - Effect of NO on the Spontaneous Acrosome Reaction in AsAb Positive Rat Spermatozoa
NO对抗精子抗体阳性大鼠精子自发顶体反应的影响 - Quercetin, extracted from flavonoids, could inhibit spontaneous contraction of isolated ileum of guinea pig and antagonize contractive reaction of isolated ileum caused by Ach, so it could slow the peristalsis of excited intestinal canal and restore the normal peristalsis.
黄酮类成分经进一步分离得到了槲皮素，实验表明槲皮素能抑制离体豚鼠回肠的自发收缩，拮抗乙酰胆碱引起的离体豚鼠回肠的收缩反应，减缓肠道的蠕动，恢复肠道正常的机械活动； - Generally, the spontaneous displacement reaction of alkali metals with calcium is impossible.
用碱金属氯化物与金属钙的置换反应来制备碱金属光电阴极，在通常条件下是不能自发进行的。 - In this thesis, by the means of adiabatic oxidation test of coal samples, the kinetic essentials of coal low-temperature oxidation in spontaneous combustion process are analyzed and the reaction kinetic model is developed.
论文以煤的绝热氧化跟踪试验为基本手段，剖析了煤自燃进程低温氧化动力学反应实质，建立了煤低温氧化动力学模型； - And has build up the mathematical models and solution of the foremost spontaneous combustion period through the theory of chemical reaction between coal and oxygen and thermodynamics and heat transfer theory.
在煤与氧化学反应原理以及热力学和传热学原理基础上，建立了煤最短自然发火期数学模型及求解方法。 - According to the molecule orbital theory, the oxidation spontaneous combustion reaction of the low molecular compound in coal takes place at the atoms which charge density is thick.
根据分子轨道理论，煤中低分子化合物的氧化自燃反应发生在电荷密度较大的原子部位，计算得到了煤有机质中低分子化合物发生氧化自燃反应的活性点。 - The exchange reaction was an endothermic and spontaneous reaction as the temperature increased.
结论药物与树脂的交换过程主要受树脂粒径和反应温度的影响，而且该离子交换反应是吸热反应，即升高温度有助于反应正向自发进行。 - Background and purpose: Inflammation caused by peripheral tissue injures produces pain-related behavior ( persistent spontaneous nociception and hyperalgesia) and inflammatory reaction such as redness and edema.
背景与目的：外周组织损伤所致炎症既伴随有疼痛的产生（持续性自发痛、痛觉过敏等）同时又有明显的红、肿、热的炎症反应。 - The influence of the descending activities from the somatosensory area ⅱ ( S ⅱ) on spontaneous spikes and nociceptive reaction of the pain-related units in the caudate nucleus was observed in awaking and paralysed cats.
本实验用清醒麻痹的家猫观察到，皮层第二体感区（SⅡ区）的下行活动对尾核痛相关单位的自发放电和伤害性反应均有影响。 - Spontaneous self-assembly reaction is an important method for the synthesis of metal-sulfur clusters.
自兜反应是合成金属硫簇合物的重要方法。 - The qualitative experiment indicates that it is still a spontaneous ionic reaction under water condition between acid gas and the components of carbonatite, this kind of environment can be fully provided by HEGF reservoir.
定性实验表明，酸气与地层碳酸盐成分之间仍然是在有水条件下的自发离子反应，高能气体压裂地层条件完全能够提供这样一个环境。 - The results showed: ( 1) the descending activities of area Si influenced not only the spontaneous activities of pain-related units in caudate nucleus, but also the nociceptive reaction of pain-related units mainly in the form of inhibitory descending modulation;
本结果提示：（1）SⅡ区的下行活动不仅对尾核痛相关单位的自发活动有影响，而且对痛相关单位的伤害性反应有以抑制为主的下行性调制作用。 - The experimental method and mathematical model for calculating the incubation period of coal seam spontaneous combustion were established by taking the chemical absorption heat and chemically reaction heat during coal oxidation as the main heat source of temperature rise during coal combustion, and actual computation was made.
以煤氧复合作用的化学吸附热和化学反应热作为煤自燃升温的主要热源，建立了煤层自然发火潜伏期解算的实验方法和数学模型，并进行了实际解算。 - Only the partial peak intensity is appreciably different. The oxidized functional group, aromatic degree and alkyl side-chain has an influence on coal spontaneous combustion and they determine the progress of oxidation reaction about coal& oxygen.
煤结构中的含氧官能团、芳香度的高低和烷基侧链对煤自燃影响较为显著，决定了煤与氧发生氧化反应的难易程度。 - The source and formation mechanism of methyl carbamate in liquor covered the followings: ① methyl carbamate formed by spontaneous chemical reaction of carbamide and methanol in fermented and undistilled alcoholic beverage;
白酒中氨基甲酸甲酯的来源和形成机理主要有：①在已发酵的和未蒸馏的酒精饮料中尿素和甲醇自发的化学反应生成氨基甲酸甲酯； - The spontaneous trend of a chemical reaction and the reacting limit are connected with the function value Δ G of free energy in the reaction system.
化学反应的自发趋向和反应所能迟到的限度与反应体系的自由能函数ΔG值的大小有关。 - The metabolism is not a spontaneous reaction and is catalyzed by the enzymes.
而生物体内的新陈代谢并不是完全自发进行的，而是靠生物催化剂&酶来催化的。 - The adsorption process is exothermic, entropy reduces spontaneous reaction.
吸附过程是放热、熵减小的自发性反应。 - The increase of marine transportation not only brings economic development, but also a lot of maritime accidents, and among which the fire accidents are in the largest proportion. The reason is that the coal spontaneous combustion reaction which is the main cause of the fire.
海上运输的增多不仅带来了经济上的发展也带来了很多海运事故的发生，而火灾在众多事故中所占的比例最大，究其原因，煤炭的自燃反应是引起火灾的主要原因。 - The adsorption was a spontaneous process, and the high temperature is favorable to the reaction, but the effect of temperature on the adsorption was not obvious.
高温有利于吸附反应的进行，但温度对吸附效果的影响并不明显。 - The thermodynamic study showed that, Ash-PT adsorption processes were spontaneous endothermic reaction, and elevated temperatures were conducive to the adsorption process.
热力学研究表明，Ash-PT吸附过程为自发进行的吸热反应，升高温度有利于吸附过程的进行。