There occur from west to east the (fan) delta or shallow, semi-deep and deep lacustrine deposits which are assigned to three depositional systems.是什么意思_There occur from west to east the (fan) delta or shallow, semi-deep and deep lacustrine deposits which are assigned to three depositional systems.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句