图像的高度和宽度的最大值被设置为 150 像素，但是保持高宽比例不变，因此图像没有变形。

The height and width are maxed out at 150 pixels, but the ratio of the height-to-width is preserved so the images are not distorted.

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应对控制堆大小的最小值和最大值的堆大小参数进行调整，使堆的利用率保持在50%左右。

Adjust the heap size parameters that control the minimum and maximum heap size so that the Java heap runs around 50% utilized.

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主要介绍一种动态参量最大值的检测和保持仪表的设计。

The design of a kind of measure and hold meter with the maximum dynamic parameter is introduced.

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