药力 efficacy of a drug 药力强。 the medicine is potent enough to produce the desired effect. 药力发作。 the drug is taking effect
火药 gunpowder; powder 慢燃火药 a slow-burning gunpowder; 无烟火药 smokeless gunpowder; 使火药爆炸 explode [blow up] gunpowder; 中国首先发明火药。 早在唐代, 中国就发明了火药。 到宋代已被大量运用到军事上。 元、明之际, 还利用喷气原理制造了“火箭”。 火药从13世纪起传到国外。 gunpowder was invented in china. gunpowder, invented as early as in the tang dynasty (618-707 a.d.), was use militarily on a large scale in the song dynasty (960-1279 a.d.). in the period between the yuan dynasty (1271-1368 a.d.) and the ming dynasty (1368-1644 a.d.), “rockets” were invented with the use of the fundamentals of jet. gunpowder was introduced to other countries in the 13th century.; 火药袋 cartridge bag; 火药库 powder magazine; 火药室 powder chamber; 火药桶 powder barrel; powder keg
The closed bomb test is performed , and the power strength , impact sensitivity , flash point are tested 进行了密闭爆发器实验,测试了火药力、撞击感度和爆发点等性能。
The co - volume , impetus , combustion velocity coefficient and pressure exponent were obtained through these combustion p - t curves 实验测得了它们的火药力、余容、燃速系数、压力指数等燃烧性能参数。
When propellant is used in weapons with larger gas expanding ratio , the power capability accords with potential energy , and the power capability accords with impetus when gas expanding ratio is small 发射药在气体膨胀比大的武器上应用时,做功能力与潜能较为一致;在气体膨胀比小的武器上应用时,做功能力与火药力较为一致。
The results show that the thermodynamic properties of propellant combustion gas products have an important effect on its expanding power , and the correlation between conventional energy parameters such as impetus , potential energy and its power capability is not identical 结果表明,发射药燃气产物的热力学性质对其膨胀做功具有较大的影响,传统的火药力或潜能能量参数与做功能力之间的关系并非完全一致。
The combustion parameters such as co - volume and impetus of the studied explosives were obtained through two methods , one is the standard closed bomb test ( cbt ) and the other is theoretic calculating with vlwr eos . the calculated values agreed well with experimental data 研究采用密闭爆发器实验对炸药的燃烧性能参数(如火药力、余容等)进行了测试,并采用vlwr状态方程方法对这些燃烧参数进行了热力学计算,获得与实验吻合的燃烧性能参数。