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单词
regular ventilating circuit
释义
regular ventilating circuit
regular ventilating circuit
[
′reg·yə·lər ′vent·əl‚ād·iŋ ‚sər·kət
]
(mining engineering)
All places in the mine through which there is a positive natural flow of air.
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更新时间:2025/3/17 5:49:00