表征固体表面润湿性质的特征量或经验参数。固体表面可分低能固体表面与高能固体表面。
试验表明，水稻、小麦和甘蓝叶片的临界表面张力分别为36 。
The result of this experiment showed that the critical surface tension needed by rice, wheat and wild cabbage leaves was 36.
本文应用单丝接触角测定仪测定了不同偶联剂处理的玻璃纤维临界表面张力。
Monofilament contact Angle meter has been used to measure the critical surface tension of glass fiber treated by different coupling agents.
使得塑料临界表面张力、粗糙度、印墨附着力得到提高，从而改善其印刷适性。
The critical surface tension, coarse degree and the oil ink adhesive force of plastics were improved, so the print adaptability was improved.
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