查询词典 active carbon

They encompass the following broad bands of biological roles:(1) basic structural units of cellular membranes and cytologically distinct subcellular bodies such as chloroplasts and mitochondria;(2) compartmentalizing units for metabolically active proteins localized in membranes;(3) a store of chemical energy and carbon skeletons; and (4) primary transport systems of nonpolar material through biological fluids.

这类物质无论在功能上还是结构上都有明显不同，它们具有以下广泛的生物学作用。1。细胞膜和细胞中亚细胞器，如叶绿体和线粒体的基本结构单元。2。定位于细胞膜上具有代谢活性蛋白质的划分单位。3。化学能和碳骨架的储藏物质。4。以生物流的形式使细胞内非极性物质得以运输。

According to XPS data, the surface basicity of active coke is mainly ascribed to the delocalized π electrons of carbon platelets.

由XPS数据可知。随着活性焦表面的氧含量的减少，离域π电子趋于活跃，活性焦的碱性增加，证实了碳原子平面层上的离域π电子是活性焦表面碱性位存在的主要原因。

In the reaction process of synthesizing vinyl acetate,the loss of the active species Zn2 from the surface of activated carbon results from Zn2 sublimating of gas phase and the blocking inside micropores with condensation products.

乙炔和醋酸合成醋酸乙烯的反应过程中，催化剂的失活，是由催化剂中的醋酸锌Zn2从活性炭表面上升华到气相中以及被凝聚物堵在微孔内部而引起的。

Preparation activated carbon from the charring coconut shell with the water as active agent by simultaneous measurements of thermogravimetry and differential thermal analysis was studied.

以椰壳炭为原料，水为活化剂，利用同步热重/差热分析仪对椰壳炭活化的机理、反应热效应以及微波辐照对微波椰壳活性炭制备的影响进行了探讨。

The results showed that some conductive carbon materials and sodium sulphate could improve the utilization coefficient of the active material of positive electrode.

实验结果表明，某些碳素材料和硫酸钠等添加剂可以提高电极的活性物质利用率。

Other new features for the car will include heavy use of lightweight carbon-fiber materials and active aerodynamics - surfaces that react to what the car is doing, and how fast it's doing it.

其他新功能的汽车将包括大量使用轻质碳纤维材料和积极的空气动力学-表面反应的车是什么做的时候，以及如何快速它这样做。

The dry atmosphere consists almost entirely of nitrogen (78.1% volume mixing ratio) and oxygen (20.9% volume mixing ratio), together with a number of trace gases, such as argon (0.93% volume mixing ratio), helium, and radiatively active greenhouse gases such as carbon dioxide (0.035% volume mixing ratio), and ozone.

干大气几乎完全由氮（78.1%的体积混合比）和氧（20.9%的体积混合比）构成，还包括一些微量气体，如氩（0.93%的体积混合比）、氦，以及对辐射起作用的温室气体如二氧化碳（0.035%的体积混合比）和臭氧。

John Tyndall wrote in 1861 that slight changes in the amount of any of the radiatively active constituents of the atmosphere—water vapor, carbon dioxide, ozone or hydrocarbons—may have produced "all the mutations of climate which the researches of geologists reveal … they constitute true causes, the extent alone of the operation remaining doubtful."

35年后斯凡特·阿伦尼乌斯发表了划时代的论文，详细分析了大气中CO2的不同浓度对地球温度的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。