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The chair sagged down under the fat man's weight. 椅子经这胖人一坐便压弯了。
The chair seat had a slight sag. 椅子的座位略微下陷。
Some metals weld better than others. 有些金属容易焊，有的不容易焊。
The bed sagged down in the middle when he sat on it. 他一坐在床上，床的中间便陷了下去。
sagged weld 下垂焊缝
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。
His cheeks are beginning to sag. 他的双颊开始松垂。
The shelves sag under the weight of the books. 书架因书的重量而下陷。
His spirits sagged after that strike. 受到打击后他有点萎靡不振了。
It take speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
His mind sagged round and round on the same track. 他的念头一而再再而三地在一条轨道上转着。
It takes speed to weld steel at this heat. 在这样的高温下熔接钢铁需要快速。
The ship sagged(away) to leeward. 船飘向下风。
The thick shoulders sagged in misery. 那厚实的双肩丧气地耷拉了下来。
They weld the pieces of a broken axle. 他们焊接断了的车轴。
The ship sagged(away)to leeward. 船飘向下风。
His job is to weld parts together. 他的工作是焊接零件。
The tent began to sag as the canvas became wet. 帐篷因帆布湿了中间有些下坠.
Before applying heat for a weld, the plates should be clamped together. 在用热进行焊接之前，必须把金属板紧紧地夹在一起。
Her shoulders sagged and she did as he said. 她两肩一垂,无可奈何地照办了。

今日热词

深远海浮式风电平台 - deep-sea floating wind power platform

京雄高速公路 - Beijing-Xiongan expressway

农业及相关产业增加值 - the added value of agriculture and related industries