通过四球试验评价了微米铜在润滑脂中的自修复作用。
The self - repair performance of micron copper in grease is evaluated with four - ball tester.
用于毛针织物及其它织物不受压力情况下的起球试验。
Used for testing pilling of wool knitted fabric and other fabrics under no pressure.
用于毛针织物及其它织物不受压力情况下起球试验。 。
Used for testing pilling of wool knitted fabric and other fabrics under on pressure.
Those of you who have your ping-pong balls can now begin the experiment.
好,我们会到这边来把球给你们,已经拿到球的同学就可以开始试验了。
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