叛军的炮兵部队经常轰炸机场。Rebel artillery units have regularly bombarded the airport.突击队在炮兵的火力掩护下向前推进.The commandos pushed forward under the covering fire of their artillery.我们的步兵在炮兵火力掩护之下.Our infantry was protected by a curtain of ...
Proliferation of lymphocytes in lacrimal and salivary glands may cause bilateral painless enlargement.泪腺和唾液腺淋巴细胞增生,可引起两侧腺体无痛性肿大.House-hunting is in fact relatively painless in this region...在这个地区找房子事实上相对比较容易。The operatio...
渔船和游艇跟随着大型班轮进入了港口.Fishing boats and pleasure - craft followed the great liner into the harbour.班轮正在船坞修理.The liner is in dock for a refit.那艘班轮遇到巨大海浪而沉没.The liner foundered in heavy seas....
照像材料含有亲水胶体的感蓝卤化银卤剂层.The photographic elements contain a blue - sensitive hydrophilic colloid silver halide emulsion layer.分子兼有亲水的和疏水的两个基团,叫做两性的或两亲的.Molecules with both hydrophilic and hydrophobic groups are called amphip...