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单词
natural frequency of sucker-rod string
释义
natural frequency of sucker-rod string
[机] 抽油杆柱固有频率
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needle tray
needle trough
needlets
needle tube
needle tubing
needle-tubing assembly
needle tubing assembly
needle-type axle bearing
needle-type clothing
needle type diathermic cutter for fiberscopes
needle type injector
needle-type martensite
needle type martensite
needle type microfiberscope
needle type pyrometer
needle type pyrometre
needletype valve
needle type valve
needle up positioning device
needle value
needle-valve
needle valve
needle valve lift tester
needle valve of economizer
needle valves
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更新时间:2026/7/16 14:35:30