This article will focus on the horizontal arrow (bind) from the service requester to the service provider.

本文将重点讲解从服务请求者到服务提供者的水平箭头(绑定)。

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The horizontal timeline control can also be adjusted by using the left and right arrow keys.

也可以使用向左键和向右键来调整水平时间线控件。

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In a generic sequence diagram, a condition appears as a guard with the message name above the horizontal call arrow.

在常规序列图中，条件作为带有消息名的保护机制出现，位于水平调用箭头上方。

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