helical seal
英
美
- 螺旋密封
相关词汇
helical lug
helical
Helical multi-shelled structure
helical-shell conical shaped bowl
Helical orbit beta ray spectrometer
helical linearity transmission line
helical surface with variable pitch
helical type hydraulic steering gear
helical carbon core/shell structure
helical and twisted reinforced material
helical-orbit beta-ray spectrometer
helical-groove profile milling cutter
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