The testing person uses the universal testing machine to make material mechanical testing. 化驗人員用萬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行標度。
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