by hand level

A system manager can modify the config file by hand, but it is assumed that at some level an application will be required to modify the config file directly.

系统管理员可以手动修改该配置文件，但通常在一定程度上，需要应用程序直接地修改该配置文件。

You might place hand-washing reminders at children's eye level, such as a chart by the bathroom sink for children to mark every time they wash their hands.

你可以放一块洗手提示栏在孩子的视线水平，例如在浴室洗手盆旁边放一个图表记录孩子自己洗手的每一次。

The country's terms of trade (the price of its exports divided by its imports) have leapt by 30% over the past three years to their highest level for over 50 years (see left-hand chart).

澳大利亚的贸易条件（出口价格除以进口价格）已跃居30％，已超过三年来的最高点成为50年的最高水平。