The different structure of the three-way pipe lead to the different local loss of head, it cause a great influence on operating costs of irrigation.

“三通”结构形式的不同会造成不同的局部水头损失，对灌溉运行费用影响很大，所以对三通结构进行优化，减小灌溉水头和局部水头损失有相当大的意义。

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But many business people say they are holding only enough local currency to cover their immediate operating costs.

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However, investors cited rising wage and operating costs resulting from a stronger local currency as a concern for the coming quarters.

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"We have all had to endure substantially increased operating costs by setting up shops in locations where those local governments are providing subsidies, " said Digital Domain Chief Executive Ed Ulbrich.

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