基本解釋[機(jī)械工程]煙火型推進(jìn)劑英漢例句雙語例句Upon vehicle impact, a pyrotechnic propellant charge is ignited electrically.車輛發(fā)生碰撞時，電子點燃焰火式推進(jìn)劑填料。pyrotechnic propellant更多例句專業(yè)釋義機(jī)械工程煙火型推進(jìn)劑