查询词典 carbon

The invention provides a method for preparing a tube-shaped cathode of a direct methanol fuel cell, belonging to the fuel cell field and comprising the steps of: dispensing a single solution for gel injection molding at first, then adding a mesophase bituminous coal micro ball into the single solution and stirring evenly to obtain stable slurry, then casting the slurry into a die, preserving heat until the single solution reacts with a cross-linker completely to obtain a carbon-biscuit, after drying and sintering the biscuit in vacuum, preparing a diffusion layer and a catalyst layer on the surface by dipping process, and then coating polyester electrolyte membrane with a burette, rolling the carbon on a warm table to solidify the electrolyte membrane.

一种制备直接醇燃料电池管状阴极的方法，属于燃料电池领域。本发明首先配制凝胶注模用单体溶液，之后将中间相沥青炭微球加入到单体溶液中，搅拌均匀得到稳定的浆料，然后将浆料浇注到模具中，保温至单体与交联剂完全反应，得到炭管素坯，将素坯烘干、真空烧结后，在其表面采用浸渍工艺制备扩散层、催化剂层，然后采用滴管涂覆聚合物电解质膜，在加热台上对炭管进行滚压，使电解质膜固化。

I thought, only carbon dioxide, car exhaust, coal combustion emissions of these will be, did not expect the weak everywhere in life,"carbon" in violation of our lives and our planet.

我本来以为，二氧化碳只有汽车尾气、煤炭燃烧这些会排放，没想到生活中处处都有微弱的&碳&在侵害着我们大家的生活和地球。

Carbon monoxide is a colorless, odorless , poisonous gas, slightly lighter than air, that is produced by the incomplete burning of carbon in fuels. The main sources are internal combustion engines, mostly in motor vehicles

一氧化碳是一种无色无味的有毒气体，比空气稍轻，这是由燃料中的炭不能完全燃烧生成的，主要来源是内燃机，大多产生于机动车辆。

The Barbier-Type reaction is one of the most important methods for the construction of carbon-carbon bond in organic synthesis.

构建碳-碳键的反应在有机化学中一直处于非常重要的位置。而Barbier-Type反应又是其中最重要的反应之一。

In these experiments, we have choosen the activated carbon as the support, and copper nitrate, copper acetate and copper sulfate were used as precursors to prepare the supported activated carbon-copper catalysts. Toluene was chosen as pollutant for activity test.

本实验选择活性碳当担体，而前驱物为硝酸铜、醋酸铜、硫酸铜制备金属活性相为铜之触媒，并假设目标污染物为甲苯来进行实验探讨。

Based on the dynamic composting process of wastewater sludge from China Resources Breweries Co., Ltd., the dynamics of different operational and evaluating indices, such as temperature, moisture content, pH, humic acid, total organic carbon, total nitrogen, water-soluble organic carbon and germination index and so on, during the treatment process were discussed. The results indicated that cottonseed cake used as compost amendment of brewery sludge.

为快速高效无害化处理啤酒厂污泥，对啤酒厂的污水污泥进行微好氧堆肥发酵处理工艺进行了研究，重点研究了啤酒厂污水污泥袋式堆肥过程中温度、含水率、pH值、腐殖酸、有机碳、全氮、水溶性有机碳、发芽指数等参数的变化规律。

A novel cylinder-shaped structure carbon nanotubes field emitting light tube was presented. Carbon nanotubes film as an emission cathode was grown directly on the tungsten wire by pyrolysis. The new CNTs grown technology was obtained.

设计了一种新型结构的场发射碳纳米管发光管，采用热解法直接生长在钨丝上的碳纳米管作为发光管阴极，获得了新的碳纳米管生长工艺。

The data of selected structure parameters of (C_5H_5)_3Ln· THF, such as the average distance between the penta carbon ring and the central metal, the distance between the penta carbon center or the coordinated THF and the central metal, showed that their values decreased with the increase of atomic number.

产物(C_5H_5)_3Ln·THF的特征结构参数，如五元碳环的碳原子与中心金属的平均距离，五元碳环质心与中心金属距离，配位的四氢呋喃氧原子与中心金属距离，由于&镧系收缩现象&，随着中心原子序数的增加而减小。

In order to study the seasonal fluctuations of the environmental factors in the burrows of plateau zokors, the temperature and humidity were measured directly by thermo-hygrometer, the water content of the soil was measured by using the drying cabinet, oxygen and carbon dioxide concentrations were measured using oxygen and carbon dioxide radiomete.

为了测定高原鼢鼠洞穴环境因子的季节性变化，我们用温湿度计、干燥箱和O_2、CO_2测定仪测定了春、夏、秋三个季节中高原鼢鼠洞道内的温湿度、土壤水分含量和气体组成。

Organic carbon burial forcing of the carbon cycle from Himalayan erosion〔J〕.

青藏高原东北部30 ka以来的古植被与古气候演变序列〔J〕。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新