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safe-conduct
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double return circuit power supply
double-return siphon
double-reversal system
double rhombic antenna
double ribbon agitator
double rib warp loom
double rig
double ripple
double rivet
double riveted joint
double roasting
double Roebel bar
double-roll crusher
double roller
double roller (lever) escapement
double roller mixer
double-roller safety action
double-roll feed
double roll interlocking tile
double-roll press
double Roman tile
double root
double rose
double round
double roving
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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