现有理论指出：行星是恒星诞生之后的残留物——碟状尘埃和气体的产物。
Current theory holds that planets are made from disks of gas and dust left over after star birth.
然而有专家怀疑并没有科学证据证明所有有害的武器残留都已消除，特别是其燃烧产物。
That has been questioned, however, by one expert, who pointed out that there was still no scientific proof that all harmful traces of the weapons have been removed, particularly after they were burnt.
该方法与单一溶剂洗脱相比，增加了固定相对磷脂的选择性，而且在终产物中无毒性物质残留。
Compared with the method of single-eluting solvent, this method increased the selectivity of fixed phase to phospholipid, moreover there are no toxic residue in the final products.
通过对产物中残留单体的检测，分析出反应物的转化率为90%以上。
It is found conversions of each monomer reaches 90% by analysing the leftover monomer in the product.
微生物提高原油采收率(简称MEOR方法)是石油开采过程中采用的一种利用微生物及其代谢产物将残留原油采出的方法。
Microbial enhanced oil recovery (MEOR) is a technique to utilize microorganisms and their metabolic products to improve the recovery of crude oil from reservoir rocks.
在确定残留物限度时，也许只是集中注意主要的反应物做得并不够，因为也许有别的化学变异产物更难以除去。
In establishing residual limits, it may not be adequate to focus only on the principal reactant since other chemical variations may be more difficult to remove.
残留在自来水中的内分泌干扰物质的来源主要包括水源污染，配水管网及这些化合物质在氯消毒过程中的副产物。
Endocrine disrupting compounds in tap water mainly stem from the pollution of raw water for water supply, concrete tank and lining of still pipe in water supply system, and chlorination process.
一般情况下，合成的产物均为有色固体，以及在产物中有异丙氧基基团残留而显吸湿性。
The compounds thus prepared were generally obtained as colored solids and amongst them those containing isopropoxy group were found to be hygroscopic.
农药的光化学降解是海水中农药残留污染物去除的重要途径，其降解过程和降解产物对海水环境的影响很大。
The processes of photodegradation of pesticides play a key role in the transformation of pesticides in the marine environment.
本模型可以准确地计算CSTR反应器的浆液浓度、产物固含率、催化剂残留率、熔融指数等重要的生产指标。
The model can count the important index of production, such as slurry concentration in the reactor, solid contents of products, catalyst residual and MFR.
头季稻成熟期残留在茎鞘中，特别是倒2以下节间中的光合产物越多越有利于再生稻产量的提高；
The more photosynthates distributed in stems and sheathes at maturity of main crop, especially in internodes below the 2nd from the top, the higher yield of palingenesis rice would get.
建立了测定动物源产品中双甲脒及其代谢产物残留量的气相色谱—质谱法，并对样品预处理的方法和定量检测条件作了较详细的探讨。
An analytical method for the determination of amitraz and 2,4-dimethyl anilinein in foods of animal origin was developed by gas chromatography-mass spectrometry.
然而，两亲嵌段共聚物的传统的制备方法是有机金属催化剂催化的活性离子聚合法，故产物中难免会残留有毒的有机金属催化剂。
At present, block copolymers containing PCL and PEG chains are mainly prepared by active ionic polymerization using traditional chemical catalysts, some toxic organometallic compounds.
然而，两亲嵌段共聚物的传统的制备方法是有机金属催化剂催化的活性离子聚合法，故产物中难免会残留有毒的有机金属催化剂。
At present, block copolymers containing PCL and PEG chains are mainly prepared by active ionic polymerization using traditional chemical catalysts, some toxic organometallic compounds.
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