1) material selection
材料选用
1.
This paper gives a general introduction of material selection and dimension calculation of hanger rods in Shanghai Boiler Works Ltd.
对上海锅炉厂有限公司锅炉吊杆的材料选用和尺寸计算作了简单介绍;针对原吊杆尺寸计算中材料许用应力的选取已不适应当前材料许用应力的确定准则—安全系数已被修改的状况,通过调整吊杆计算标准中的许用应力以及螺纹端计算截面积来减小吊杆的尺寸规格。
2.
The material selection and the mounting method of the nozzle for SF 6 circuit breaker arc-quenching chamber are discussed,which could be referenced to design,material selection and improvement of mounting quality of the nozzle.
对SF6断路器中灭弧室喷口的装配方法及材料选用进行了分析和探讨,为SF6断路器中灭弧室喷口的结构设计、材料选用及装配质量的提高提供了参考。
2) choice of raw material
原材料选用
1.
The paper introduces the choice of raw material, compound process and the property of the adhesive as well as the factors that may have influence on the performance of the adhesive, such as the influence of PVA amount on adhesive strength, starch amount on its state in container and adhesive strength, AM amount on the brushability and drying time of putty, and .
文章介绍该胶粘剂的原材料选用、配制程序和性能,以及影响胶胶粘剂性能的几种因素。
3) material environment-protective
材料选用环保化
4) selecting for cutter material
刀具材料选用
5) Engineering material selection
工程材料的选用
6) selection and use of materials
材料选择与使用
补充资料：塑胶材料对模具材料的选用
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条