查询词典 graphite

Objective: To establish a method for direct determination of plumbum in soy sauce by graphite furnace atomic absorption spectrometry.

目的：建立一种石墨炉原子吸收法直接测定酱油中铅的方法。

The feasible conditions for trace plumbum determination in red wine by graphite furnace atomic absorption spectrophotometry were studied.

研究了石墨炉原子吸收法测定葡萄酒中微量铅的适宜条件，采用标准加入法和塞曼效应校正背景，铅的线性范围为10μg/L～50μg/L，回收率为90%～110%。

The device attaches the synthesized single walled carbon nanotube to the inner surface of the spherical crown shape graphite polar plate in the form of large area (100 to 200 square centimeters) film.

本发明使合成的单壁碳纳米管，能够以大面积(100～200cm 2 )薄膜的形式均匀附着于阴极球冠石墨极板的内表面上。

The joining of graphite, ceramic SiC and C_f/SiC composites via preceramic silicone resin at high temperature (800~1400℃) was studied.

对先驱体硅树脂高温(800～1400℃)转化陶瓷接头连接石墨、陶瓷SiC及Cf/SiC复合材料进行了研究，着重对硅树脂固化裂解过程、硅树脂溶液浓度及裂解温度对连接性能的影响进行了探讨。

The joining of graphite,ceramic SiC and C_f/SiC composites via preceramic silicone resin at high temperature(800~1400℃) is studied.

对先驱体硅树脂高温(800~1400℃)转化陶瓷接头连接石墨、S iC陶瓷及Cf/S iC复合材料进行了研究，着重对硅树脂固化裂解过程、硅树脂溶液浓度、裂解温度及惰性填料对连接性能的影响进行了探讨。

It seems that a proper reduction of volume fraction of graphite fibres will be available to improve further the properties of compsite.

讨论了纤维分布情况对界面微观结构的影响，认为适当降低纤维体积含量对进一步改善复合材料性能有利。

Between 500 and 700 psi graphite gaskets are a must.

在500至700 psi工作压力下，必须采用石墨垫圈。

The catholic polarization curves of pyrolusite on graphite electrode in H2SO4 solution were determined by using potential-dynamic scanning under various conditions.

polarization curves ； cathode ；用动电位扫描法测绘了硫酸溶液中软锰矿在石墨电极上的还原极化曲线，考查了液固比、温度、搅拌速率等因素对阴极过程的影响。

By using pyrophyllite and natural graphite as raw materials, SiC-Al2O3 refractory composite powder were synthesized with the carbothermal reduction method.

以蜡石和天然石墨为原料，通过碳热还原法合成了SiC-Al2O3系复合耐火粉体。

The results indicate that heating temperature has a great influence factor on the synthesis of SiC-Al2O3 refractory composites powder, and the powder can be synthesis by adding a amount of natural graphite into pyrophyllite and heating the mixture to over 1 650 ℃ in argon atmosphere.

结果表明：加热温度对于SiC-Al2O3系耐火粉体的合成具有重要影响。通过在蜡石中添加适量的天然石墨，并将蜡石和石墨的混合物在氩气中经1 650 ℃以上温度热处理4 h，可以合成SiC-Al2O3耐火粉体。

If you are committed to an education career, then the Master of Arts in Education from Ashford University is for you.

如果你是致力于教育事业，那么，艺术教育硕士学位阿什福德大学是给你的。

objective:to explore the expression of survivin protein and its mrna in rectal cancer and their clinic significance.

目的：研究凋亡抑制因子survivin蛋白及其mrna在直肠癌组织中的表达及其与临床病理关系。