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单词
systematic support
释义
systematic support
systematic support
[
‚sis·tə′mad·ik sə′pȯrt
]
(mining engineering)
The regular setting of timber or steel supports at fixed intervals irrespective of the condition of the roof and sides.
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pelvic arch
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pelvic axis
pelvic bone
pelvic bones
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pelvic cavity
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pelvicephalometry
pelvic exam
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更新时间:2025/3/14 2:28:38