Usually, if explosive particles have less crystal defects, more smooth surface, and higher crystal density, the explosives have lower sensitivities and better safety.
通常讲，具有更少的晶体缺陷，更光滑的外形、更高的晶体密度，则有利于降低炸药的感度，提高安全性。
The spontaneous combustion and explosion of AN-based explosives lies the crux of safety problem of in the presence of sulphidic minerals and high ambient temperature.
硝酸铵基混合炸药的自燃自爆问题，是硫化矿及高温条件下爆破安全问题的关键所在。
The feeling of safety provided by two mighty oceans now gone, Americans no longer get on planes as if they were buses or go tee baseball games without a brush from a metal or explosives detector.
过去由于位于两大洋之间而产生的安全感现在已经不存在了。美国人无法再像以前乘公共汽车或者看棒球赛那样方便的乘坐飞机了，必须接受金属和爆炸物的探测。
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