一方面可能是因为最近骤冷的天气阻碍了生产。
For one thing, the recent cold snap may have hindered production.
抽样的产品必须通过不同条件的测试，例如骤冷骤热的温度差测试，真空测试，强压测试等。
Selective products have to pass the test in different conditions, such asshock heating and cooling, vacuum and pressure.
为防止产品转变为不符合要求的副产品，需进行骤冷操作。
A quench operation is required to prevent conversion of plant product to undesirable byproducts.
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