testing of materials的用法和樣例：
例句
- The testing person uses the universal testing machine to make material mechanical testing.
化驗人員用萬(wàn)能材料試驗機做材料機械性能試驗。 - If a range of specimen sizes is needed for materials tests, the fixtures should be carefully scaled to the specimen.
如果材料試驗需用一系列的試樣尺寸，則夾具就應當仔細地按試樣進(jìn)行標度。
