The mathematical model of hydraulic regime of ring-shaped heat-supply network is established, and the pressure head check formula for quota heating is given.
建立了环状管网水力工况的数学模型,给出限额供热的压头校核公式。
Companies using the milk for further production (e.g. of powdered infant formula) normally check the protein level through a test measuring nitrogen content.
而使用牛奶进行下一步加工(比如婴幼儿配方奶粉)的公司,一般通过测量含氮量来检测蛋白质含量。
Then your view selection formula need only check for that flag.
这样,视图选择公式就只需要检查那个标记。
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