确定型库存控制模型的应用条件是需求量、备运量、货延迟期为确定的量。
The applied condition of definite goods in stock is the amount of demand, the amount of stock and delayed-action goods.
醇类混合燃料的着火延迟期、燃烧持续期、燃烧循环变动都大于汽油，放热规律与汽油相似。
The inflammation retardation period, combustion continuance period and combustion cyclic variability of compound alcohol fuels is greater than that of gasoline.
介绍了硼的物理化学特性和燃烧机理，硼的点火延迟期长、燃烧效率低是由其本身的特性所决定的。
Physicochemical properties and combustion mechanism of boron are introduced. Long ignition delay time and low combustion efficiency are due to the properties of boron itself.
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