docking sonar transponder set进: advance; move forward; move ...港: harbour; port声纳: sonar; acoustic susceptance ...应答器: transponder返航声纳应答器: homing sonar transponder set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:进港声纳应答器，即可在微信中查询翻译
