单词	spetzler
释义	spetzlerCOCA²¹⁵⁵⁶¹🌏螺旋桨
随便看	drilling theory drilling time drilling time log drilling-time log drilling-time logging drilling time recorder drilling tool drilling tool accident drilling tool anti-failure drilling tool assembly drilling tool bouncing drilling tool breaking off drilling tool combination drilling tool damage drilling tool failure drilling tool gradation drilling tool jamming accident drilling tools drilling tool stillness drilling tool structure drilling tool substitute drilling tools with chains for deep drilling drilling top-driving drilling tower drilling traces