They would leave subtle clues in the isotopic composition of the limestone by shifting the ratios of light to heavy carbon and oxygen atoms in its calcium carbonate.
因为如果是那样的话，阳光将会被转换成大量的碳、氧原子保存到石灰岩中的碳酸钙里，而事实却是，岩层的同位素组成（Isotopic composition）中没有留下任何蛛丝马迹。
Traffic conditions refer primarily to the composition of the traffic stream, particularly the presence of trucks and other heavy vehicles.
交通条件主要指的交通流，特别是卡车和其他重型车辆的存在组成。
The fundamental method, program composition, actual application of the research of simulation on heavy haul trains and various specific simulation researches are described.
介绍了重载列车仿真研究的基本方法、程序组成、实际应用和各种具体的仿真研究。
To introduce the design method, composition and main study content of "Aid-decision System of Heavy Machine Gun System of Approval Test".
介绍了重机枪系统定型试验辅助决策系统的设计方法、组成和主要研究内容；
So, the expert thinks, protein is the important nutrition composition with indispensable human body, although be on a diet, decrease what protein also should not decrease in heavy process to absorb.
所以，专家认为，蛋白质是人体不可缺少的重要营养成分，即使在节食减重的过程中也不应减少蛋白质的摄入。
The effects of ionic liquids on viscosity, hydrocarbon composition and average molecular weight of heavy oils are investigated.
研究了离子液体对稠油黏度、组成和平均分子量的影响。
There are few studies on the effect of crop root systems on the composition, particularly on the heavy fraction of soil humus.
本文对黑钙土、黑土中各种作物根茬留茬与否对土壤腐殖质、土壤重组有机质的组成、结合形态及某些光学性质进行了测定。
The present paper mainly described the revamp on the iron bull transmission and heavy pusher system in the Coking Plant as well as the composition of the new system and its software.
主要论述了焦化厂铁牛和重推子系统的改造及其构成和软件系统。
The results indicated that the chitosan adsorption could reduce the amount of heavy metal and have no effect on the main composition tradition Chinese herbs.
结果表明：壳聚糖对中药水煎液中的重金属具有一定的吸附能力，对中药材的主要成分没有影响。
I feel heavy too, because I must write composition in a heavy style.
我的心情也不很舒畅，因为我要用沉重的笔调写作文。
The manufacturing process of heavy alkylbenzene, its composition, properties and comprehensive utilization were described.
叙述了重烷基苯的生产、组成、性能及其综合利用。
In this paper, the main research work on the application of NMR to the analysis of the structures and composition of heavy o...
本文概述了近年来核磁共振技术在重油结构和组成分析方面所做的主要研究。
The space particle composition detector aboard FY-1C satellite can simultaneously detect proton spectrum, electron integrated flux and heavy ion composition.
FY 1C星空间粒子成分探测器能够实现对质子能谱、电子积分通量及重离子成分的同时测量。
The quantitative experiments for study of relationship between heavy oil composition and its viscosity are made.
对稠油主要族组分的含量与粘度关系进行了定量的实验研究。
A new multivariate linear model was proposed to associate viscosity and group composition of heavy oil. Multiple correlation coefficient of the model is 0.9885.
提出了一种能对稠油族组成与粘度进行较好关联的多元线性模型，其复相关系数为0.9885。
The changes of viscosity, hydrocarbon composition and average relative molecular mass of Shengli heavy oil in catalytic upgrading by oil-soluble catalyst XAGD-2 were investigated.
研究了采用油溶性催化剂XAGD - 2催化改质胜利稠油过程中稠油黏度、组成和平均相对分子质量的变化。
It is found that there is a close relationship of the acid producing capacity and heavy metals release of tailings with the ore composition and floatation technology.
矿物组成、选矿工艺与尾矿的产酸能力、重金属的释放有明显的相关性。
In this chapter, the production and composition of the coal gangue, the effect and damage on the environment, pollution of heavy metals were reviewed.
本章从煤矸石的产生，组成，对环境的影响和危害，重金属的污染状况进行综述。
On the other hand, heavy use of object composition can make designs harder to understand.
另一方面，大量用对象的组合可能会使设计很难被理解。
Because of the complex composition in MSW, secondary pollution of heavy metals in the process of MSW incineration is the most difficult problem to be solved in MSW disposal.
城市生活垃圾成分复杂，并且焚烧过程中会产生重金属的二次污染，是城市垃圾处理中最难解决的问题。
John's composition are always heavy - footed.
约翰的作文选词总是不当。
Study of new generation lubricating grease for heavy - duty gear has been discussed elaborately, including its composition, performances and applications.
论述了新一代重负荷齿轮脂的研究，包括其组成、性能、应用。
By analyzing on composition and formation mechanism of ash deposit, the measures of decreasing salt and heavy metal contained in fuel oil and waste liquid and appropriately decreasing excess air co...
分析了积灰的组成和形成机理，提出了减少燃料油和废液中的盐分和重金属、适当降低燃烧的过剩空气系数等措施。
The composition of flake zinc powder based of heavy duty anticorrosive epoxy coating was described, and function of each composition was introduced.
讨论了鳞片状锌基环氧富锌涂料的组成，各组分的作用以及涂料的配方设计。
In enjoyable painting works, he applied heavy and grand colors, and paid attention to line combination and decorative beauty, full composition of picture and ink-color arrangement.
他的写意画，笔墨颜色沉雄，很讲究线条的组合和装饰美，饱满的构图和色墨的安排很有技法。
The instant invention relates to a reactor useful in upgrading heavy oils admixed with a catalyst composition in a slurry.
本发明涉及用于重油改质的反应器，其中所述重油与浆料形式的催化剂组合物混合。
The instant invention relates to a reactor useful in upgrading heavy oils admixed with a catalyst composition in a slurry.
本发明涉及用于重油改质的反应器，其中所述重油与浆料形式的催化剂组合物混合。
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