The principle and improvement of comprehensive diggingequipment are presented.
介绍了综掘机械系统的原理及改进。
2
On Friday, I stopped by a factory in Baltimore that's creating good jobs here at home by exporting diggingequipment 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。
3
Authorities say heavy diggingequipment is headed to the worst-hit areas of western Java, but time is running out for scores buried under collapsed buildings and landslides.