If a data source is not found on the target system at the time of the import, the rules that should be bound to this data source are unbound.

如果在导入时，在目标系统上不能找到数据源，规则应该被绑定到这个没有绑定的源数据上。

youdao

The range of your sight is fixed at 274 m (300 yds), which has been found to be the optimum - you merely place the graticule round the target.

瞄准具的瞄准距离固定设置在274米（300码），这是我们发现最合适的设置-你很容易用分划套住目标。

youdao

As a regex works its way through a target string, it tests whether a match can be found at each position by stepping through the components in the regex from left to right.

当一个正则表达式扫描目标字符串时，它从左到右逐个扫描正则表达式的组成部分，在每个位置上测试能不能找到一个匹配。

youdao