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I bored a hole so that the fixing bolt would pass through.
我钻了个孔，好让固定插销穿过去。
youdao
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The valve face is provided with a pilot hole or a micro fixing valve.
阀面上 冲有导向孔或微型固阀。
youdao
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The valve face is provided with a pilot hole or a micro fixing valve.
阀面上 冲有导向孔或微型固阀。
youdao