Fewer workers are needed to solder circuit boards.焊接电路板需要的工人更少了。Joints between reinforcement members can be made satisfactorily with tin solder.锡焊能够满意地做成加筋构件之间的接头.A number of metals and alloys, how ever , are difficult t...
Joints between reinforcement members can be made satisfactorily with tin solder.锡焊能够满意地做成加筋构件之间的接头.Single plated nickel barrier terminations has excellent solder heat resistance for soldering.外部电极为镍的电镀构造,于焊接时具有极优越的耐热性.Fe...
There have been many attempts to track down the putative Loch Ness monster.人们为追踪假定存在的尼斯湖水怪做了许多努力。But the putative new owners must have detected some bright spots amid the general gloom.但是这些即将露面的新主人肯定是在黑暗的夜空看到了几颗闪亮的星星.......
Cottrell strode out across the cobbled courtyard.科特雷尔穿过铺着鹅卵石的院子大步走出来。Mr. Cottrell's zeal for chess is quite remarkable.卡瑞先生对于弈棋十分爱好.A . Cottrell , The First Emperor of China , Macmillan, 1981.科特瑞, 《始皇帝》,马克麦兰, 1981年....