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Development and application of CAD softwares for building water supply and drainage design
建筑给排水CAD软件的开发及应用
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2、
But few mention the declining supply of water that is needed to grow irrigated and rain-fed crops.
但是几乎没有人提到用于种植灌溉和雨养作物所需的水供应的下降。
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As commodity, ought to abide by law of value, execute paid water supply, reasonable collect fees.
作为商品, 就应当遵循价值规律, 实行有偿供水, 合理收费.
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