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...
In 1970, at his new wife's behest, they moved to Southampton...1970年，应他新任妻子的要求，他们搬到了南安普敦。I called the office at the behest of my secretary.在秘书的催促下,我给办公室打了电话.Master, he will accompany you to the west at Guanyin'...
Season with salt, pepper and a pinch of cayenne.调以盐、胡椒和少许辣椒粉。Any coach worth his salt would do exactly as I did.任何称职的教练都会采取和我一模一样的行动。Salt the stock to your taste and leave it simmering very gently.根据自己的口味给原汤加点盐，然后用文火慢炖。...
The isle is very birdy.那小岛上有许多鸟.Probably made in Norway , found on the Isle of Lewis , outer Hebrides, Scotland.推测于挪威制造, 于苏格兰外海路易斯岛发现.Castle-hunters won't be disappointed with the Isle of Man...马恩岛不会让城堡探寻者失望的。Apothe...
Methods: About 10 - 15 mim before the examination, 654 - 2 10 mg im, then take 160 - 200 % BaSO 4 50 ml and certain aerogenic powders orally.方法病人检查前10~15分钟肌注654-210mg, 然后口服160~200%硫酸钡50ml, 适量产气粉....
Naomi used to go to church in Granville every Sunday.娜奥米以前每个星期天都去格兰维尔的教堂做礼拜。Naomi's mothering experiences are poignantly described in her fiction.娜奥米把她当母亲的经历字字辛酸地写进了小说。Beth was struck by how Naomi took the mistake i...