geosynclinal axis大: big; large向斜: swally; syncline; synform轴: axle; shaft大向斜: geotectocline; megasyncline向斜轴: axis of syncline; synclinal axis; synclinal(trough)axis; synclinalaxis; trough axis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:大向斜轴，即可在微信中查询翻译
