Since its launch in2008, it had put countries in charge of rescuing the iconic species in the wild. 自2008年启动实施以来,该倡议让各国负责拯救这一深受大众喜爱的野生物种。
Collins also foresaw that by2030, people would be arguing, as British physicist Stephen Hawking already is, that humans could start to take charge of their own evolution by altering their genes to improve the species. 科林斯同时预测,到2030年,人们会像英国物理学家斯蒂芬霍肯现在正在做的那样来宣称人类可以通过改变基因、改善物种来掌控自身的进化。
In this paper, the author has proposed a mathematical model to describe the process of adsorption and charge neutralization by hydrolyzed aluminum species on the basis of coagulation mechanism. 通过对凝聚机理和铝盐在水中水解过程的分析,提出了铝盐水解物吸附引起胶体电中和的数学模式。
The induced charge is equal to the average valency of the species occupying the cation sublattice. 诱发电荷的大小等于占据着阳离子亚晶格的物质的平均价。
Comparison of the Features of Charge and Species Transfer under Reductive Atmosphere between Two Kinds of Metal-Semiconductor Catalysts: Pt/ MoO_3 and Pt/ Co_3O_4 还原气氛下金属-半导体催化体系Pt/MoO3和Pt/Co3O4中电荷和物种传递特性的研究
Hydrotalcite is used to designate the lamellar hydroxides with two or more kinds of metallic cations in the main layers which bearing fabric positive charge and interlayer domains containing exchangeable anionic species. 水滑石是指由两种或两种以上金属离子组成的具有层状晶体结构的氢氧化物,层片结构带正电荷,层间存在可交换的阴离子。
In order to make clear the reaction mechanism, the charge distribution of all species and the electronic densities of the bond critical points ( BCP) and the ring critical points ( RCP) for the key bonds are calculated and discussed. 分析了反应中各物种的电荷分布、重要化学键的成键临界点和成环临界点的电荷密度。
It can be seen that the exchange of charge in solid is the most basic process of the interaction of ion micro-clusters with solid, and it is critical to species and yield. 通过对实验测量结果的分析,可以看出在固体膜中的电荷交换,是离子微团簇与固体相互作用最基本的过程,对于出射产物的种类、产额等起着决定性的作用。