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cordite n.無煙線狀火藥,硝棉甘油石油脂火藥。

cordless

Since cordite burns at a greater rate at a higher pressure a relief valve must be used to allow generated gas to escape to atmosphere at times when the demand is low . 因為柯達火藥在較高的壓力下以較高的速度燃燒,所以必須使用一個溢流閥,以便當用氣少時,能讓所產生的部分氣體排到大氣中去。