2) physical deterioration
实质破损
4) destructive test
破损试验
5) Crushing experiment
破碎实验
6) Blasting experiment
爆破实验
1.
Based on the prototype of caving coal under the metal nets and caving coal on total high in hard coal of Datong,the rules of charging decoupling coefficient and explosive charge along line influencing the size of top-coal lump were researched through the virtual blasting experiment in perpendicular to coal stratification and parallel to the coal stratification.
以大同坚硬煤层金属网下放顶煤和全厚一次放顶煤开采试验为原型 ,采用大煤样爆破实验方法 ,按垂直层理和平行层理模拟爆破 ,研究了装药不偶合系数Ke 和线装药密度对坚硬顶煤爆破块度的影响规律 ,提出了模型与原型炸药量的换算关系式 。
补充资料：保险商实验室安全标准(见保险商实验室)
保险商实验室安全标准(见保险商实验室)
safety standards of UL: see Underwriters Laboratories; UL
Baoxianshang Sh啊nshi anquan bicozhun保险商实验室安全标准(saJ七ty stand助dsofUL)见保险商实脸室。
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