The test that we saw last time saying, well, to check if something is a gradient field if it's conservative, 0 we just have to compute the curl and check whether it's zero.
由上次的测试可知，如果一个东西是保守的，要确定是不是梯度，我们只需要计算旋度，查看它是否是。
Also correct damage boundary curve to avoid damage test, reduce over package design caused by conservative design, make package design approach distribution reality.
用它可以修正破损边界曲线，避免破坏性实验，减少由于保守设计造成的过度包装。
The test results show that this technology system that combines highly efficient use of rainfall and conservative farming technologies has greatly improved the yield and saved the irrigation water.
试验示范结果表明，实施此项自然降水高效利用与保护性耕作相结合的综合机械化技术，具有显著的增产、节水效果。
To assure accuracy and provide the most reliable test results, dozens of consumer articles were assessed using extremely conservative exposure models.
为保证精确性并提供最可靠和有效的检测结果，研究人员采用极端的传统接触模式检测了几十种消费产品。
To assure accuracy and provide the most reliable test results, dozens of consumer articles were assessed using extremely conservative exposure models.
为保证精确性并提供最可靠和有效的检测结果，研究人员采用极端的传统接触模式检测了几十种消费产品。
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