The principle and improvement of comprehensive digging equipment are presented.
介绍了综掘机械系统的原理及改进。
On Friday, I stopped by a factory in Baltimore that's creating good jobs here at home by exporting digging equipment abroad.
周五,我在巴尔的摩一家工厂停下脚步,这家工厂通过出口挖掘装备到海外,把好的工作岗位留在了国内。
Authorities say heavy digging equipment is headed to the worst-hit areas of western Java, but time is running out for scores buried under collapsed buildings and landslides.
当局说,深挖设备已经被运往受灾最严重的爪哇西部地区。但是对那些被压在坍塌的建筑和山崩的碎石下面的几十人来说,时间已经不多了。
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