bhgmborehole gravimeterborehole gravity meterdownhole gravity meter井下: in the pit; under the shaft重力仪: gravimeter; gravity meter小直径井下重力仪: slimhole bhgm自动井下重力仪: abhgm水下重力仪: underwater gravimeter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:井下重力仪，即可在微信中查询翻译
