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缩径 | |
gen. | reduce; reducing |
dril. | bottle-neck; bottlenecking; loss of working diameter; neck down; tight hole; well bore shrinkage |
mech. | reducing |
阀门 | |
met. | flap |
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reduction | |||
bottlenecking; loss of working diameter; neck down; well bore shrinkage | |||
reduce | |||
necking | |||
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reduce; reducing | |||
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bottle-neck | |||
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undersize (of hole) | |||
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reduce | |||
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tight hole | |||
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reducing |
缩径 : 143 phrases in 28 subjects |