@Size指定被注解的元素addressline1和addressline2不能超过给定的最大值，即30个字符。
The @Size annotation specifies that the annotated elements, addressline1 and addressline2, must not be longer than the specified maximum, 30 characters.
给定数据(不是图形)，六西格玛黑带应能确定驻点是最大值、最小是还是马鞍点。
Given data (not graphics), the Six Sigma Black Belt will be able to determine if the stationary point is a maximum, minimum or saddle point.
介绍了太阳能烟囱发电站的工作原理，并在给定参数下对太阳能烟囱的主要设计参数进行了计算，得到了太阳能烟囱内气流速度的最大值。
The operating principle of solar chimney power plants is introduced. Under specified parameters, the main design parameters are worked out, including the maximum velocity in the solar chimney.
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