叠氮化铅

LEAD AZIDE, WETTED with not lessthan 20% water, or mixture of alcoholand water, by mass

叠氮化铅，湿的，按重量含水或酒精和水的混合物不

LEAD AZIDE, WETTED with not lessthan 20% water, or mixture of alcohol

叠氮化铅，湿的，按重量含水或酒精和水的混合物

Alpha lead azide ; thermal initiation ; reaction in solid ; thermal explosion reaction

α-叠氮化铅；热起爆；固相反应；热爆炸反应

Tetrazole derivatives are one of the important energetic materials. Their metal salts are potential detonators to replace lead azide. In fact they are the primers studied most systematically besides azides.

四唑衍生物是一类重要的高能材料，其金属配合物可能作为高能钝感起爆药替代叠氮化铅、它们是除叠氮化物以外研究得最为系统的起爆药剂。

British Explosive Research and Development Establishment have investigated the chemical properties and explosive performance of tetrazole derivative(mainly 5-substituted tetrazole derivatives) and complexes, aiming at finding well-behaved initiatory explosives to replace lead azide.

例如1970年以来，美国陆军部的弹道研究实验室以及英国的炸药研究与发展中心曾对四唑化合物的性能及其替代叠氮化铅作新型起爆剂的可能性作了大量研究和论证；他们报导了系列四唑衍生物及其金属配合物的撞击感度实验结果。

Tetrazole derivatives are one of the important energetic materials.

四唑衍生物是一类重要的高能材料，其金属配合物可能作为高能钝感起爆药替代叠氮化铅、它们是除叠氮化物以外研究得最为系统的起爆药剂。。。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。