军队是不鼓励秘密警察渗入的少数机构之一。The army was one of the few institutions the secret police were not encouraged to penetrate.防油纸: 高度抗油渗入的半透明纸.Grease - proof paper : Translucent paper with high resistance to grease penetration.高度抗油渗入的...
PVC laminating metal sheet and its composite sandwich panels have biggish market in ship at present.PVC复塑板及其复合夹芯板目前在船用上占有较大的市场.Low viscosity multipurpose resin used for casting or laminating room temperature.低粘度多用途树脂,用于室...
一般说来, “ 静电 ” 和 “ 电流的电 ” 是无差别的.In general, there is no distinction between'static electricity " and " current electricity ".然而各种肠道病毒对氯的抵抗力是有很大差别的.There is, however, a wide variation in the resistance of enteric virus...