jet guide meaning in English

喷射导向装置

In order to open the cover of a concentric canister launcher ( ccl ) automatically with the jet during its launching , four schemes are put forward , viz . fracturable cover , eccentrically positioned interior and exterior launching tubes , jet guides of assymmetric construction , and covers made of heterogeneous materials
摘要为实现导弹自力发射时同心发射筒前盖自动向一侧开启，讨论了4种燃气开盖方案：易碎盖方案、内外筒偏心盖方案、半导流锥方案和各向异性材料发射筒盖方案，并用数值方法模拟了各种方案的筒内复杂三维流场。