氮化

The drum,screw, screen changer and die head are made of high quality alloyed steel (38CrMOAIA) with high hardness, strong corrosion resistance and long operating life after nitrogen treatment.

螺杆、料筒、换网器、模头均选用优质合金钢（38CrMoAIA），经氮化处理，硬度高、防腐能力强、使用寿命长；模头为衣架式支管递减型，流道利于熔料流动、无滞留现象，片材厚度均匀；压光琨内采用螺旋往复式水槽，水循环冷却，效果极佳；模头、换网器、料筒温度分段控制，整机传动同步运行。

IT is by far the hardest of all known natural substances (10 on Mohs' scale); only manmade Borazon and synthetic diamond are as hard.

这是目前已知的所有天然物质最难(10月Mohs法大)；只有氮化硼、人造金刚石是人工硬。

To properly grind the tungsten, use a grinding wheel specially designated for tungsten grinding and one that is made of borazon or diamond (to resist tungsten's hardness).

妥善研磨钨、专用砂轮磨削钨一即制成或氮化硼钻石。

In addition the company also sell a variety of borides Agents, zirconia grinding ball, lithium-bentonite, silicon nitride iron, Castable superplasticizer used, brick,×, silica and other refractory materials and products .

此外公司还代理销售各种硼化物、氧化锆研磨球、锂基膨润土、氮化硅铁、浇注料用高效减水剂、粘土砖、高铝砖、硅砖等多种耐火材料和制品。

As a result of it, the surface hardness of the cermets was improved greatly.

另外氮化处理可以使材料的表面硬度得到较大的提高。

The changes of the surface microstructure and hardness in the cermets heat-treated in nitrogen have also been studied.

研究了金属陶瓷进行氮化处理后表面组织结构变化和表面硬度的变化。

Improved yield and selectivity are observed while applying this technology on diazo- coupling reactions.

该技术在重氮化、偶合反应中的应用，取得了高于常规反应器的收率和纯度。

GaN with a thickness of 150~200μm was grown by hydride vapor phase epitaxy.

接著利用氢化物气相磊晶法成长150~200μm的氮化镓厚膜。

The influence of deposition, annealing conditions, and etchants on the wet etch rate of plasma enhanced chemical vapor deposition silicon nitride thin film is studied.

本文研究了沉积、退火条件及刻蚀液对等离子体化学气相沉积氮化硅湿法刻蚀速率的影响。

Concentrated, buffered, and dilute hydrofluoric acid were utilized as etchants for SiO2 and SiNx:H. A high etching selectivity of SiO2 over SiNx:H was obtained using highly concentrated buffered HF.

浓氢氟酸、缓冲氢氟酸和稀释氢氟酸被用作氧化硅和氮化硅的刻蚀液，使用高浓度的缓冲氢氟酸可以获得较高的选择比。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。