A "durable security compound" incorporated into the treads of the company's new Energy Saver tyre helps maintain the tyre's rigidity, allowing it to grip the road.

米其林在其公司新型的节能轮胎的胎面加入了“耐久安全化合物”来保持轮胎的硬度，使之抓地性能得以保证。

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If coverage remains this low, the reforms may not prove politically durable since they are not creating a comprehensive system of income security in old age.

ECONOMIST: Economics focus

Although the federal government's support for basic research so far shows no sign of waning, academics wonder how durable that commitment will prove now that, post cold war, national security has become less of a reason to invest in science.

ECONOMIST: The knowledge factory