“slow-spiral drill”的概念、定义、翻译、参考文献-科学参考

单词	slow-spiral drill
释义	slow-spiral drill [`slō ¦spī·rǝl `dril] See <<low-helix drill>>
随便看	time-rock unit time scale time separation time series time-series analysis time-share time-shared amplifier time-sharing time sight time signal time slice times sign time standard time-stratigraphic facies time-stratigraphic unit time study time switch time system time tick time-transgressive time-varying system time zone timing timing-axis oscillator timing belt

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