Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/42b4d7d356e90b7de5cc300e7282cb9f.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 geochemical gradient例句_geochemical gradient英汉例句_geochemical gradient双解例句_沉淀汉英词典
A tectono-geochemical barrier is a sector of a geological structure, where the element concentration gradient of the tectono-geochemical field is at its maximum. 构造地球化学障就是构造地球化学场中元素浓度梯度极大值所在的地质构造地段。