English translation for "free-fall drill"

重力冲击钻机

Similar Words：

"free-fall anchor" English translation, "free-fall boring" English translation, "free-fall core cutter" English translation, "free-fall corer" English translation, "free-fall diving life saving sphere" English translation, "free-fall duration" English translation, "free-fall gear" English translation, "free-fall grab" English translation, "free-fall gravity" English translation, "free-fall height" English translation