knock off是什么意思

用法例句

Necking-down Growth and Stress Analysis for 300 mm CZ Silicon Single Crystals;

300mm硅单晶的缩颈生长及应力分析

Also,a thin\|wall tube necking in conical die is a.

本文还给出利用主剪应力迹线上的正应力方程求解锥模薄壁管缩颈应力的实例。

Combined with practical engineering experiences,the author introduces the basic principle of reflection method,illustrates the basis to valuate integrate pile,necking,tube diameter expansion,segregation,breakup and interlayer with reflection method,and discusses relevant problems should be noticed in on-site testing,in order to offer reliable reference for design and construction acceptance.

结合工程实践经验,介绍了反射波法的基本原理,利用反射波法对判断完整桩、缩颈、扩径、离析、断裂或夹层等现象的依据进行了阐述,并对现场测试中需注意的相关问题进行了论述,为设计和施工验收提供了可靠的依据。

According to the properties of short circuit transfer in CO2 welding,the short circuit detecting circuit,which including primary short circuit detecting and liquid bridge pinch detecting circuit is designed on the basis of voltage comparer,differential circuit and digital circuit.

根据CO2气体保护焊短路过渡的特点,利用电压比较器、微分电路、数字电子线路,设计了短路检测电路和短路液桥缩颈检测电路。

Experiment study of spinning spindleless roller's journal reduction spinning force;

旋压式无心轴托辊缩颈旋压力的试验研究