the enemy onslaught on our military forces敌军对我军的进攻The city resisted the enemy onslaught for two weeks.这个城市反抗敌人的猛攻达两个星期之久.The clash of our onslaught hurtled across the field.我们猛攻的声音传遍战场....
化合物庚烷的主要用途是作为双基推进剂的增塑剂.The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.正庚烷异构化的难点在于高选择性地生成多侧链异庚烷和抑制异庚烷的裂化反应.However, it is difficult to produce multi branched i heptane and re...