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无缝管生产
释义
无缝管生产
Encyclopedia
工学
金属管材轧制
释
manufacturing process of seamless tube and pipe
无缝管生产
将实心管坯(或钢锭)穿孔并轧制成周边无接缝的钢管或其他金属管和合金管。
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NDWBF
Nd:YAG amplifiers
Nd:YAG laser
NdYAG laser
Nd:YAG激光器
NdYAG激光器
ND滤镜
NE
Ne
NEA
NEAFC
Neagh,Lough
Neal L. First
Neander
Neander crater
Neanderthal
Neanderthal human remains
Neapolitan chord
Neapolitan School
neap rise
neap tide
NEAR
near
near-algebra
near axial ray
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