“four-piece set”的概念、定义、翻译、参考文献-科学参考

单词	four-piece set
释义	four-piece set [¦fȯr ¦pēs `set] ^{MINING ENGINEERING} Squared timber frame used in underground driving to give all-around support to weak ground.
随便看	modulation with a fixed reference modulator modulator crystal modulator-demodulator modulator glow tube module modulo modulo N modulo N arithmetic modulo N check modulo-two adder modulus Siphonolaimoidea Siphonophora siphonosome siphonostele Siphonotretacea siphonozooid siphon recorder siphon spillway siphuncle Siphunculata siporex Sipunculida Sipunculoidea

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