“American boring system”的概念、定义、翻译、参考文献-科学参考

单词	American boring system
释义	American boring system [ǝ`mer·ǝ·kǝn `bȯr·iŋ ´sis·tǝm] ^{MINING ENGINEERING} A rope system of percussive boring, with a derrick which enables the complete set of boring tools to be raised clear of the hole. Also known as American system.
随便看	future trapped set fuze fuzee fuzz fuzzy algorithm fuzzy assignment statement fuzzy conditional statement fuzzy controller fuzzy logic fuzzy model fuzzy relation fuzzy relational equation fuzzy set fuzzy system fuzzy unconditional action statement fuzzy value fV f value F/V converter FWHM Féry spectrograph föhn G g G2 drift

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