One is the composition of the lava. The more viscous lava is, the harder it is for gases within it to bubble out, so such lava has an explosive tendency.
一是熔岩的成份，熔岩越黏，里面气体向外涌就越困难，因此这种熔岩有爆炸倾向。
Inflammable and explosive poisonous gas are gas occurrence boiler device of the primary risk involved in substance, the main composition is carbon monoxide (co), hydrogen (H2), nitrogen.
易燃易爆有毒的煤气是煤气发生炉装置涉及的最主要的危险物质，主要成分为一氧化碳(CO)、氢气(H 2)、氮气。
The study were carried out to improve the detonation propagation reliability of nonel tube by means of composition of the mixed powdered explosive designed and tube material designed.
通过采用混合药粉配方设计和导爆管管材设计等技术手段开展了提高导爆管传爆可靠性的研究。
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