"Drawing Standard HVAC" (GB/T50114-2001) The air conditioning water systems engineering large, complex and prone to water imbalance, so use a good hydraulic balance system with the program.
《暖通空调制图标准》 （GB/T50114-2001）本工程空调水系统庞大而复杂，且容易产生水力失调，所以选用了水力平衡性较好 的同程式系统。
He drew more than 30 monochromes with topics of line-drawing human body, like wind, or cloud, or water, or air, expressing aesthetic beauty.
他在不知不觉中绘出三十几幅线描人体题材的单色画，像风、像云、像水、像气，体味着唯美的美妙。
He drew more than 30 monochromes with topics of line-drawing human body, like wind, or cloud, or water, or air, expressing aesthetic beauty.
他在不知不觉中绘出三十几幅线描人体题材的单色画，像风、像云、像水、像气，体味着唯美的美妙。
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