单词	karst coal basin
释义	karst coal basin 塌陷煤盆地
随便看	electron bombardment melting furnace electron bombardment secondary electron image electron bombardment welding electron-bombardment welding electron bombardment zone melting electron bonding energy electron brain electron bridge electron bubble electron bunch electron buncher electron bunching electron bundle electron burn electron calculating machine electron camera electron capture electron capture decay electron-capture decay electron-capture decay energy electron-capture decay rate electron capture detector electron-capture detector electron capture detectors electron capture gas chromatography xzxw xzyb xzyd xzyf xzyk xzym xzyq xzys xzyx xzyy 46283 46284 46285 46286 46287 46288 46289 46290 46291 46292