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steel ball
steel ball coal mill
steel ball indent
steel ball lapping machine
steel ball polishing machine
steel ball-type valve
steel band
steel band butt welder
steel-band conveyer
steel band knitting machine
steel band tape
steel bar
steel bar bender
steel bar shearing machine
steel bar straightening and shearing machine
steel-based plate
steel baseplate
steel beaker
steel beam
steel beam for crane
steel beam trammel
steel bed
steel belt
steel belt conveyor
steel belted piston
科学参考收录了1248194条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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更新时间:2024/12/26 11:51:40