The extension of a length called the gauge length is studied during the test.

被称为标距长度的这段长度延伸问题将在测试进行时研究。

Magnetic level gauges are generally of lighter weight than gauge glasses and are able to be fabricated to any length.

磁性液位计通常是比玻璃液位计轻，并且能制成任何长度。

For example in the electrical industries wire gauge is determined by a formula based on resistance per unit length.

例如，在电器行业，线径是由以每单位长度电阻为基础的公式。