开关 – phrases

Chinese	English
开关板、键盘	key-board
引爆开关参见 blasting switch	firing switch
爆破开关将起爆电源联在爆破网路上的开关，一般放置在仪表盘的表面	blasting switch
爆破开关闸	electric blasting house
爆破宽度和未开采面的高度的关系	relationship of blast width to highwall height
紧急开关	breakdown switch
这些制约着地下煤开采水平的混杂因素以及影响整个开采过程的地质因素、技术因素和经济因素复杂关系之间的相互作用、已在上文作了详细探讨	The motley of factors that constrain the level of recovery in underground extraction of coal and the complex interplay of geologic, technologic and economic factors affection the overall recovery process have been discussed above in detail