另一种是化学因素导致细菌突变。
化学因素是继发性再障最常见的病因。
Chemical factors were the most common reason for secondary aplastic anemia.
二是大骨节病的环境化学因素研究进展。
Some results from these studies demonstrated that one of the important causes of low Se in environment is …
浮游植物的生长受多种物理、化学因素制约。
Phytoplankton growth is restricted by various of physical and chemical factors, and light is the most important.
本文就化学因素对反应过程产生的影响进行了讨论。
Some discussions about the influence of the chemistry factors on progress was carried.
并由试验中总结出影响泥炭脱臭能力的物理及化学因素。
The physical and chemical factors influencing the deodorization ability of the peats have been summarized from the results of the experiments.
这也许是褐飞虱喜欢聚集在叶鞘部位取食的化学因素之一。
It might be one of the reasons why BPH has a preference of feeding on leaf sheath aggregately from chemical point of view.
文中对若干与油层扩展密切相关的物理化学因素和过程也作了讨论。
Therefore, some physicochemical factors and processes closely related to oil spreading has been discussed in the paper.
本文研究了影响碳钢碱性焊条焊接烟尘量及其毒性的电弧物理及化学因素。
The physical and chemical properties of welding arc affecting the amount and toxicity of fumes generated during manual arc welding with low carbon steel basic electrodes are investigated.
进一步开展化学因素对胚胎心脏发育的基础及相关临床研究将有着重要的意义。
It will be valuable for further research into the effects of chemical factors on embryonic heart development.
茶树也有可能在外在物理或化学因素的诱导下强化挥发物糖苷的生物合成和积累。
The physical and chemical factors of surrounding stress will probably induce biosynthesis and accumulation of glycosidic aroma precursors.
分析胶体与表面化学因素对反应的制约，提出了有待改进的工艺环节和改进方向。
The impact of colloid and surface chemistry factors on the reaction is analyzed. Suggestions on process improvements are raised.
作者讨论了石墨转化为金刚石时的自由能变化和影响金刚石保存的物理化学因素。
This paper discussed the change of free-energy while graphite transforming into diamond and the physical-chemical factors affecting the preservation of diamond.
本文主要阐述了矿床的控矿地质和物理化学因素以及金的活化、迁移、富集规律。
The geological and physicochemical factors of ore controlling of the ore deposit, and the regularities of activation, migration and enrichment of gold are studied in this paper.
多聚磷酸盐在肌肉中主要是通过相应的水解酶水解，受到较多物理化学因素影响。
The polyphosphates were hydrolyzed mostly by responding enzymes. There were some factors could affect the hydrolysis.
她也指出，在数十万的环境化学因素中，也只有很少一部分经过了测试，证明了其与肥胖症有关。
She also points out that only a few of the tens of thousands of known environmental chemicals have been tested for their association with obesity.
本舱群是为研究密闭环境条件对人体、动物生理机能的物理和化学因素的影响而建造。
These chambers were built for researching on the influence of physical and chemical factors in closed-environments on human and animal physiological functions.
这些化学因素可能会平衡蛋白分子的电荷状态，从而增加了反应物间相互作用的程度。
These chemical factors may balance the charge state of protein molecules and, thus, increase the degree of interaction between the reactants.
无论如何，它的活动受到各种因素的强烈影响，这可能是神经因素，也可能是化学因素。
In any case, its activity is profoundly modified by various factors, which may be of either nervous or chemical origin.
目的：研究酸、二氧化碳、甜味剂、羧甲基纤维素等化学因素对龙葵色素稳定性影响。
Objective: To study the influence of such chemical agents as acid, CO2 food sweetening agent and carboxymethyl cellulose (CMC) on the stability of the pigment of Solanum Nigrum.
造成环境污染的重要原因之一是化学因素，解决环境污染问题，化学起举足轻重的作用。
Chemical factor has been incriminated as one of the fundamental causes of environmental pollution, chemical factor occupies a pivotal position in solving environmental problems.
在泥炭的煤化过程中，这种矿化溶液又在一系列的物理和化学因素控制下重新分配与富集。
When the process of the coalification of peat continued, this mineralizing solution was redistributed and enriched under the control of physical and chemical factors.
讨论了物理化学因素，特别是结构特征和游离氧化铁的胶结作用，对力学性质的重大影响。
The significant effect of various physicochemical factors, especially the structure characteristics and cementation of free ferric oxide on the mechanical properties is reviewed.
包括来自于“底层”的物理和化学因素，也就是分子间的作用，影响了上层的基因、染色体、细胞、组织和生物体。
They include constraints imposed "from below" by physics and chemistry, that is, from molecular interactions upwards, through genes, chromosomes, cells, tissues and organisms.
结果表明，结合影响粘接强度的物理和化学因素作出针对性的改进措施，可在一定程度上提高接头粘接强度。
The result indicates that improving measurements regarding to physical and chemical factors involved with adhesive strength can reinforce adhesive strength to some extent.
包括Riebesell博士在内的一些人士怀疑暖化带来的物理和化学因素对海洋里生产力的影响可能超过改变了的PH值。
Some, including Dr Riebesell, suspect that these physical and chemical effects of warming may prove a greater driver of productivity change in the ocean than altered ph.
随着时间的推移，尘肺、化学因素中毒和总职业病患者发病工龄趋于年轻化，发病工龄也明显缩短，差异均有统计学意义（均P<0.01）。
With the passage of time, the incidence ages of pneumoconiosis, chemical poisoning and total occupational diseases tended towards younger. The difference was statistically significant(P<0.01).
也许对于护理行业，尤其是医学行业，在选拔时应该少考虑化学方面的好成绩，多考虑善解人意和同情心之类的因素。
Perhaps selection for the caring professions, especially medicine, could be made less by good grades in chemistry and more by such considerations as sensitivity and sympathy.
而其中最重要的因素就是温度：研究表明尸体温度每上升10摄氏度其中的化学反应速度就会翻倍。
The most important is temperature: the rate of chemical reactions in a cadaver doubles with each 10 degree Celsius rise.
而其中最重要的因素就是温度：研究表明尸体温度每上升10摄氏度其中的化学反应速度就会翻倍。
The most important is temperature: the rate of chemical reactions in a cadaver doubles with each 10 degree Celsius rise.
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