单词	directional drill
释义	directional drill 导向钻机
随便看	mechanical booster mechanical booster pump mechanical boring machine Mechanical boundary mechanical brain mechanical brain injury mechanical brains mechanical brake mechanical-brake mechanical brake cylinder mechanical brake equipment mechanical brakeman mechanical brake of hydro unit mechanical braking mechanical braking device mechanical braking system mechanical braking system of wind turbine mechanical breaching mechanical breakdown Mechanical breakdown of cardiac device mechanical breaking mechanical breather valve mechanical breathing mechanical breathing therapy mechanical bruise resistance