single measure door
气门座光面器 Valve seat refacer
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文中详述了马头门光面爆破参数的优化及施工方法。
The paper introduced the parameter optimization and construction method of smooth blasting of horse-head ingate.
youdao
适合于采光面要求的较大的阳台门和商店外门。
Suits in the natural lighting surface request big balcony gate and the store entrance door.
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