To see how well the two fit, and where the potential mismatches occur.
2
这会避免数据类型转换开销过高和可能的 SQL 数据类型失配错误。
This avoids datatype conversion overhead and possible SQL datatype mismatch errors.
3
这种度量作用可以阻止手指接触到天线的馈点,从而解决阻抗失配的问题。
It's beneficial effect is purely a result of the way it prevents one's finger from touching the antenna's feed point, solving the impedance mismatch issue.