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- All welding equipment, machines, welding leads shall be inspected prior to being used on the worksite. 现场所有焊接设备，机器，焊头在使用前都要进行检查。
- Often lack of fusion adjacent to the girder web in the transverse groove welds led to the cracking. 在靠近主梁腹板的横向坡口焊缝处常常出现未熔透而导致裂纹。
- The horse forged ahead the lead in the homestretch. 那匹马在最后阶段突然加速跑到前面。
- Shirley will try out for the lead in the play. 雪莉将参加该剧主角的选拔演出。
- Excessive patriotism can lead to xenophobia. 爱国主义过了头即可导致仇视一切外国人。
- Some metals weld better than others. 有些金属容易焊，有的不容易焊。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- Graphite is used in making lead pencils. 石墨常被用来做成铅笔。
- Lead will fuse at quite a low temperature. 铅会在相当低的温度下熔化。
- The team recovered its lead in the second half. 该队在下半场重新领先。
- On reaching welding heat, the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
- No road of flowers lead to glory. 没有一条通往光荣的道路是铺满鲜花的。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- I'll take part, but I won't want to lead. 我参加，但不想当领导。
- Some of the students are welding capacitor; the others resistor. 学生中的一些人在焊接电容，另一些人在焊接电阻。
- Alice has the lead in the school play. 艾丽斯在学校演出的戏剧中担任主角。
- We need someone with real vision to lead the party. 我们需要具有真知灼见的人来领导这个党。
- Some of the students are welding capacitors; the others resistors. 学生中的一些人在焊接电容，另一些人在焊接电阻。
- I don't want to lead an inactive life. 我不想过沉闷的生活。
- It takes speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
