Pay attention to the flow direction of medium and install the valve referring to the indicating arrow on the valve body.

安装时请认清介质流向并按阀体上指示箭头方位正确安装。

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A small arrow appears over the breakpoint icon at line 14, indicating that execution has stopped there.

第14行断点会显示一个小箭头，标示着程序执行停止在此。

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Return values are optionally indicated using a dashed arrow with a label indicating the return value.

返回值可以使用带有表明是返回值标签的虚线箭头表示。

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