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. 因为柯达火药在较高的压力下以较高的速度燃烧,所以必须使用一个溢流阀,以便当用气少时,能让所产生的部分气体排到大气中去。
cordite
[ noun ] explosive powder (nitroglycerin and guncotton and petrolatum) dissolved in acetone and dried and extruded in brown cords <noun.artifact>
Cordite \Cord"ite\ (k[^o]rd"[imac]t), n. [From {Cord}, n.] (Mil.) A smokeless powder composed of nitroglycerin, guncotton, and mineral jelly, and used by the British army and in other services. In making it the ingredients are mixed into a paste with the addition of acetone and pressed out into cords (of various diameters) resembling brown twine, which are dried and cut to length. A variety containing less nitroglycerin than the original is known as {cordite M. D.>} [Webster 1913 Suppl.]