石墨

On this basis, the graphite, eutectic cell, boron carbide of boron gray cast iron is studied. At last, the shape factor is tested and the results of the mechanical properties and metallurgical quality index are obtained.

在此基础上，研究了硼灰铸铁的石墨、共晶团以及硼碳化物组织，并进行了定量金相分析试验；同时研究了不同孕育条件对硼灰铸铁的力学性能及冶金质量指标的影响。

The invention belongs to the nuclear technical field, in particular relating to a method for making a graphite absorption ball containing boron carbide.

本发明属于核技术领域，特别涉及一种制备含碳化硼的石墨吸收球的方法。

Hexagonal boron nitride is isoelectronic and structural similar to graphite. But no intercalation compounds of hBN have been reported.

六方氮化硼与石墨是等电子且结构相似的，但六方氮化硼层间化合物却未见有报道。

Because manganese can prevent carbon from being graphitised and can easily segregate on the boundary of eutectic cell structure, its content in malleable cast iron is usually kept at around 0.4wt% to 1.2wt%.

在可锻铸铁中，由于锰有阻碍石墨化的作用，并且容易在共晶团界面偏析，其含量通常控制在0.4 wt %～1.2 wt %之间。

Si content have been found by analyzing a large number of samples of the cast Ductile Iron Angular bearing box.

通过对铸态球铁角型轴承箱大量取样分析，找出产生石墨漂浮的原因及适合的C、Si含量范围值。

Most of the switch tubes used presently work in the gas spark region (the right branch of Paschen curve), and are made of graphite and mental such as tungsten, molybdenum, stainless steel and mercury.

目前实际应用的开关管多数工作在火花放电区域，使用的电极材料一般为钨、钼、不锈钢、水银、石墨等。

The wall of the burning chamber was pitted at the beginning then gradually burnt through.By means of the Bunsen burner,tubular furnace and XRD,SEM,EDS,this special type of high-temperabure destruction was studied.It was found that the phenomenon is resulted from the combined action of CO and lower hydrocarbon on Ni-Cr alloy.Firstly,Ni-Cr alloy is carbonized and selectively oxidized by CO to produce Cr2C,Cr3C2 and Ni-Cr2O3,while the capillary cracks in the surface layer are formed simultaneously.

作者利用几种现代手段和试验方法，对这一燃烧破坏现象进行了系统地模拟研究，发现这是CO和低分子烃在高温下对合金共同作用的结果：第一步CO作用使合金表层发生氧化和碳化，造成裂隙；第二步低分子烃扩散进裂隙并在Ni-Cr2O3微粒的催化下，裂解生在石墨炭并包复在Ni-Cr2O3微粒周围，体积增大。

Objective: To establish one GFAAS method to determine the lead and the cadmium in high salty food.

目的：建立一种石墨炉原子吸收光谱法测定高盐食品中的铅和镉的实验方法。

The steam moisture was determined indirectly by determination of caesium concentrations in the recirculated water and feedwater in steam generator by the graphite furnace atomic absorption spectrometry.

石墨炉原子吸收光谱法可以准确测定0.1μg/L至1mg/L浓度的铯，样品中可能存在的一些物质对测定没有干扰。

The new vehicle comes with the designo metallic graphite paint finish but also with the new AMG sports package with new front and rear aprons, side skirts and sports pedals of brushed stainless steel with black rubber studs, plus painted brake callipers with Mercedes-Benz lettering.

新的汽车配备designo石墨金属漆，而且也与新的AMG运动套件新前后围裙，侧裙和运动踏板的拉绒不锈钢与黑色橡胶钉，加上画制动卡钳与奔驰刻字。

We are in a real jam.

我们的麻烦大了。

Hey, it's Ahmet from India, that foreign exchange guy.

看，那是印度的阿曼特，国际交换生