The wet-skid resistance of tread stock was improved when the compound was added to tread stock.

将该复合材料加入载重轮胎胎面胶中，可提高胎面胶的抗湿滑性。

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Using the same alloy and specification of stock, and with the same cold-rolling process, just for different fabrication for stock, the tread plate's quality is much different.

采用相同合金和规格的冷轧毛料及压花工艺，仅因供坯方式不同，生产的铝花纹板质量差异较大。

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The new head, William Donaldson, a former chairman of the New York Stock Exchange, will need to tread more deftly.

ECONOMIST: American insurance