While theory insists that working with only one test suite is possible, this is unmanageable in practice.
虽然理论上可以只使用一个测试套件，但是在实践中这种情况难以管理。
OK, so tomorrow we are going to review for the test, so I'm going to tell you a bit more about this also as we go over one practice problem on that.
明天我们会为了小考复习一下，关于这个东西我会告诉你更多一点,关于这个我们也会复习一下练习题。
Practice giving answers to a complete IELTS test using only one barrel of pencil points.
要练习只用一管铅笔头答完雅思考试的所有试题。
The last one is practice, that is that theory should be applied to teaching practice, and test teaching effects.
第三部分为实践部分，将理论应用于教学实践，并对教学效果进行检验。
Only in this way can the test by practice be reliable, and can one understand scientifically that practice is the sole criterion of testing truth.
只有这样，实践的检验才是可靠的，才能科学地理解实践是检验真理的唯一标准。
This paper introduces one test method of VOC in refinery units with the practice of petrochemical industry. And, rough calculation on quantity of VOC leak in unit is made according to EPA method.
结合石油化工行业生产的实际，介绍一种炼化装置挥发性有机物检测方法，并依据EPA的计算方法对装置的挥发性有机物的泄漏量进行了估算。
This paper introduces one test method of VOC in refinery units with the practice of petrochemical industry. And, rough calculation on quantity of VOC leak in unit is made according to EPA method.
结合石油化工行业生产的实际，介绍一种炼化装置挥发性有机物检测方法，并依据EPA的计算方法对装置的挥发性有机物的泄漏量进行了估算。
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