... 地方子午线 local meridian 局部减薄 local reduction 地方恒星时 local sidereal time ...
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局部减薄
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局部减薄剂 abrasive reducer
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局部减薄弯头与直管的极限载荷不同。
The limit load of local thinning elbow is different from the straight pipe.
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文中研究了油管局部缺陷和壁厚减薄缺陷的漏磁场检测原理。
Based on the magnetic leakage flux technique, the principle of localized defect inspection and wall thickness measurement in oil well tubing has been researched.
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