select方法调用一直受阻塞，直到一个或多个警卫就绪为止(请记住，所有竞争的警卫对于alternative类来说都是已知的)。
The select method call blocks until one or more guards are ready (remember that all contending guards are known to the Alternative class).
抗氧剂1010是一种高分子量的受阻酚类抗氧剂，广泛应用于塑料、橡胶、合成纤维、弹性体、石油制品以及饲料领域中。
As one kind of high molecular weight suffocate hydroxybenzene antioxidant, antioxidant 1010 is widely used in plastic, rubber, synthetic fiber, elastomer, petroleum products and fodder fields.
受阻酚类抗氧剂的开发和研究倍受关注。
Thedevelopment and research of hindered phenolic antioxidant are always concerned.
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