“yielding prop”的概念、定义、翻译、参考文献-科学参考

单词	yielding prop
释义	yielding prop [`yēld·iŋ `präp] ^{MINING ENGINEERING} A steel prop which is adjustable in length and incorporates a sliding or flexible joint which comes into operation when the roof pressure exceeds a set load or value.
随便看	message accounting message authentication message authentication code message blocking message buffer message center message display console message exchange message indicator message interpolation message keying element message-oriented applications message queuing message reference block message registration message routing message switching message trailer messaging messenger messenger cable messenger ribonucleic acid Messier number Messier's catalog mesyl

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