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Install valve in the line with arrow on valve body pointing in the direction of flow.

在管道上安装阀门，使其阀体上的箭头指向流体流向。

Install valve in the line with arrow on valve body pointing in the direction of flow.

在管路上安装阀门，使阀体上的箭头指向流体方向。

Install valve in the line with arrow on valve body pointing in the direction of flow.

在管道上安装阀门，阀门上的箭头方向指向水流流动方向。

Install valve in the line with arrow on valve body pointing in the direction of flow.

在管道上安装阀门，使其阀门的箭头指向流体流动方向。

Install valve in the line with arrow on valve body pointing in the direction of flow.

在管线上安装阀门，使其阀体上的箭头指向流体流向。

Install the valve in the line with the arrow on the valve body pointing in the direction of flow.

安装时要使得阀体上的箭头指向水流方向。

Install the valve in the line with the arrow on the valve body pointing in the direction of flow.

将阀门安装到管线时，要使阀体上的箭头指向流体流向。

Install the valve in the line with the arrow on valve body pointing in the direction of flow.

将阀门安装在管线上时要使得阀体上的箭头指向水流方向。

Install the valve in the line with the arrow on valve body pointing in the direction of flow.

要按照阀体上的箭头方向在管线上安装阀门，使得箭头方向与流体流向相同。

IMPORTANT! Flow must always be in direction of arrow on valve body.

重要提示！水流流向必须与阀体上的箭头方向一致。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。