1·And the main lens is preset so that it always captures the greatest amount of light possible.
主镜头是预置的，以使得其始终捕获最大限度的光线。
2·A similar and more common programming practice is to utilize stub interfaces that bypass the local client interface call, and instead exercise a different local code path to return preset data.
比较常见的和通用的编程实践是使用 stub 接口，这种接口绕过了本地客户端接口调用，而是执行另外的本地代码路径并返回预置数据。
3·Training activity management can be started up according to the preset activities in the training plan or by hand.
培训活动管理，可以根据培训计划中的预置活动启动，也可以是直接手工启动。
4·An XML distortion preset file can also be loaded from disk.
也可以从磁盘加载一个xml格式失真预置文件。
5·Installed in a mainline it prevents upstream pressure from dropping below a preset minimum. Solenoid override of the sustaining function allows for electrical on-off operation.
安装在主管线内，防止上游压力降到预置最小压力以下。电磁阀的过载平衡功能使其能够进行电气开-关操作。