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词汇
hand screw
释义
hand screw
短语¹⁸⁰⁰⁹⁸⁺
¹
基本
例句
n.
手动起重器
The stem applies rising- stem type, which has left hand screw. When the stem nut is rotated, the opening scale of the valve can be directly viewed.
无滞留凹腔，阀杆为明杆左旋螺纹，随着外部阀杆螺母的旋转可直观阀门开启程度；
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unit transportation
Unit,Trauma
unit tread
unit tread construction
unit treatment
unit trial operation
unit triangle
unit triangular matrix
unit trip
unit triplet
unit triplet functio
unit triplet function
unit triplet impulse
unit trust
unit-trust
unit trust company
unit trust fund
unit trust manager
unit trusts
unit-trusts
unit trust scheme
unit tube
unit tube of electric force
unit tube of flux
unit tube of force
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更新时间：2025/11/12 8:36:35