The method of ultrasonic and pullout test can get higher precision for measuring concrete compressive strength.

超声拉拔综合法用于检测砼的强度，可以提高测试精度。

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The method of ultrasonic and pullout test can get higher precision for measuring concrete compressive strength.

超声拉拔综合法用于检测砼的强度，可以提高测试精度。

youdao