This technology has been extended in a large area and achieved obvious economicrsults.
原油不加热输送技术在油田大面积推广后，取得了明显的经济效益。
The paddy area was extended to900000 mu last year.
去年稻田面积扩大到了90万亩。
The paddy area was extended to 900000 mu last year.
去年稻田面积扩大到了90万亩。
The paddy area was extended to 900000 mu last year.
去年稻田面积扩大到了90万亩。
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