3-jaw self-centering chucks-Dimensions 三爪自定心卡盘基本参数和尺寸
This 3-foot-long croc was a plant - and grub-eater with a pair of buckteeth in the lower jaw it used to dig for food.
这种3英尺长的鳄鱼以植物和幼虫为食，它下颚上长着一对龅牙用来挖掘食物。
Street artist Edgar Mueller has spent 3 days transforming a piece of Moscow pavement into a jaw-dropping waterfall scene, the Daily Mail of London reported Tuesday.
据英国《每日邮报》17日报道，德国著名街头艺术家埃德加·穆勒花了3天时间在莫斯科的一条街道上画出了一幅巨型3D瀑布，令人称奇。
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