By 1978, in the USA, the use of CFCs in aerosol propellants was banned.美国自1978年起禁止在喷雾剂压缩气体中使用含氯氟烃。This law closely resembles that obtained with conventional propellants.这种规律非常类似于用普通推进剂所得出的规律.The lighter version used liqu...
The lighter version used liquid hydrogen, the heavier used hypergolic propellants.较轻的推进器采用液态氢, 较重的采用自燃推进剂.Pressure - fed engines are particularly susceptible to dissolved gas in the propellants.挤压 式 发动机对推进剂中溶解的气体特别敏感.Thi...
The resulting radiation is known as airglow.其发出的辐射称为气辉.The nighttime airglow, or nightglow, correspond to the intensity of a candle at 100 m distance.夜间辉光或夜辉相当于在100米距离的一支烛光的强度.These techniques include the ionospheric tom...
Season with salt, pepper and a pinch of cayenne.调以盐、胡椒和少许辣椒粉。The plants tested were sesame, tobacco, wheat, alfalfa and cayenne pepper.供试植物为芝麻 、 烟草 、 小麦 、 紫花苜蓿和辣椒五种.Cayenne stimulates the blood circulation to the eyes an...
I did not embarrass her with my effusions.我并没有太过热情而让她为难。The Republicans are trying to embarrass the president by thwarting his economic program...共和党人企图通过阻挠总统的经济计划使其难堪。A major attack could still embarrass him.现在要是发动大规模进攻...