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hollow core
 hollow core
el.mach. 空心铁芯
met. 空心型芯
tech. 中空形芯
| valve
 valve
hydroel.st. 活门; 电子管
space 排气阀; 通气阀门;
tech.

to phrases
hollow core
el.mach. 空心铁芯
met. 空心型芯
tech. 中空形芯
wood. 空心
hollow core valve
: 34 phrases in 11 subjects
Agriculture1
Architecture1
Automobiles1
Electric machinery1
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Textile industry1