例句 /

Working conditions and productive capacities of both drill carrier and carry-scraper used during mechanical cut and fill stopping activities in Xinqiao Mining Cooperation Ltd. are evaluated by field testing and theoretical analysis in this paper.

详情正文

登录后查看完整内容

使用 DeepEvidence / 梅斯账号登录,新用户可在登录页面注册。

登录成功后将返回当前页面,继续浏览。