high-face room-and-pillar mining 高工作面房柱式开采
high stope pillar 高阶段矿柱
high-level pillar 高阶段矿柱
High level pillar mining 高阶段矿柱回采
high level pillar recovering 高阶段矿柱回采
wide and high coal pillar 宽厚煤柱
high pillar
高的支柱
以上为机器翻译结果,长、整句建议使用 人工翻译 。
In fact, there is a pillar there of high purity zinc that stood for the duration.
事实上,那有一个高纯度锌的柱子,存在于整个时期。
麻省理工公开课 - 固态化学导论课程节选
In New England, there remains one granite pillar against the tyranny of high tax burdens, found within the spirit of New Hampshire.
FORBES: In "Live Free or Die" New Hampshire, The U.S. Looks For Tax Leadership
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