reciprocating drill往复式: ping-pong往复式风动发动机: reciprocating air motor回转式风钻: rotary air drill架式风钻: air drifter; bar rigged drifter; boom mounted drifter; column drill; mountain drill; post drill; tunnel drill架柱式风钻: hammer drifter下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:往复式风钻，即可在微信中查询翻译
