So how to utilize it is very important.
因此，如何合理的综合利用煤矸石显得十分重要。
So we have to save time and use it effectively. How to utilize time effectively?
所以，我们必须节省时间，有效率地使用时间。
How to utilize gas high-effectively and economically has become the key to develop downstream market.
如何高效、经济地利用天然气已经成为天然气下游市场开拓的关键问题。
How to utilize gas high-effectively and economically has become the key to develop downstream market.
如何高效、经济地利用天然气已经成为天然气下游市场开拓的关键问题。
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