查询词典 graphite

The paper reviews the research fruits of preparation, adsorbing performance and mechanism of expanded graphite in recent years.

本文介绍了近年来人们在膨胀石墨的制备、吸附性能及机理研究等方面的成果。

A cast iron alloyed with silicon in which the graphite exists in the form of flakes.

灰铸铁：一种用硅合金化的铸铁，其石墨以片状存在。

This work offers a large number of data which can be used to analyze and compare with experiment values in the future.It bulids a theory platform for the later research of elements.Positron annihilation in several carbon allotropes has been studied.The results show that:Positron mainly annihilates in the interspace between layers in the single crystal of graphite.

元素单晶中的单空位附近的束缚态正电子寿命计算时与实验结果比较一部分符合的很好，还有一部分单空位附近的束缚态正电子寿命值与实验结果比较相差较大，这可能是计算中固定了单空位的近邻原子，没有考虑单空位形成时周围原子的重新排布造成的，也可能是该方法的固有缺陷。

Substance such as graphite or porcelain, used for melting and calcining ''.

坩埚一种用石墨或瓷等耐熔''。

It has been found that carburetting with graphite can efficiently prevent the surface crack of cast iron.

研究还证明，用石墨增碳可以有效地改善激光熔化区和合金化区的组织和性能，并且有效地防止裂纹的产生。

The CAWs, graphite and mineral oil were directly mixed to make the CAW modified carbon paste electrode and the electrocatalysis of the modified electrode to hydroquinone was studied.

用直接混合法制备了碳原子线修饰碳糊电极，并研究了对苯二酚在该电极上的电化学行为。

Then the temperature is higher than 10 degrees for charring, long holding time, and then formed with graphite structure of charcoal.

再经温度高于1000度以进行炭化，保温时间特长，然后形成带石墨结构的木炭。

Experimental results showed that by using 5%NH4H2PO4 as the matrix modifier and used graphite tube,setting the charring te...

使用标准物质(茶叶GBW 10016)对该方法进行了检验，结果表明铅的测定值在标准样品的保证值范围内。

Standard grade for turning, drilling, milling, reaming, countersinking of hardened steels, white and grey cast iron light metals, plastics and synthetic materials, Al-Si-Mn-Cu-alloys, glass, ceramics, graphite.

对硬钢、白铸铁、灰铸铁、轻金属、塑料、合成材料、铝-硅-锰-铜合金、玻璃、陶器、石墨等进行车削、钻孔、铣削、铰孔、穿孔等加工的标准牌号。

RKF Standard grade for turning, drilling, milling, reaming, countersinking of hardened steels, white and grey cast iron light metals, plastics and synthetic materials, Al-Si-Mn-Cu-alloys, glass, ceramics, graphite.

对硬钢、白铸铁、灰铸铁、轻金属、塑料、合成材料、铝-硅-锰-铜合金、玻璃、陶器、石墨等进行车削、钻孔、铣削、铰孔、穿孔等加工的标准牌号。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。