Require filing of confidential service contract rates.

要求对保密性的服务合同运价登记。

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Other woods expand and contract at different rates than oak, so repairs to oak ships done with those woods split or leak.

与橡木相比，其他木材的膨胀和收缩速度不同，所以用这些木材做的橡木船的修理会出现裂缝或漏水。

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The timer worked like a thermostat, on the principle that two different kinds of metal will expand and contract at different rates when their temperature changes.

计时器的工作原理类似于恒温器，当温度变化时，两种不同金属以不同速率缩小或膨胀。

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Fortunately, shipping companies are now in a better position to push for higher rates since spot rates are no longer below contract rates.

FORBES: Shipping

By filling up a truck first, Lowe's pays contract freight rates as low as one-fifth of those for smaller deliveries.

FORBES: Merchant Princes

Losses on loans would rise alarmingly if the economy were to contract sharply or official interest rates to rise.

ECONOMIST: British banks