Our opening and closing times are posted on the door.

我们开始营业和打烊的时间贴在门外。

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The differential switching system of the clamping cylinder allows high opening and closing speeds and minimal dry cycle times.

合模油缸的分流切换系统允许高速开合模，使空循环时间最短。

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Since mediaeval times, velar and guttural and its opening closing mouth have had many transformations.

中古以来牙喉音及其开合口发生了许多变化。

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The opening and closing times may change so please listen to announcements during the programme.

BBC: The Eavesdrop: Terms & Conditions

Since the start of automated trading in October, volume has dwindled near opening and closing times.

ECONOMIST: Price fixing

And for those who follow the global markets, Girard-Perregaux's watch provides a financial function that keeps track of opening and closing times on the stock exchange in New York, London, Hong Kong and Tokyo.

WSJ: World-Time Keeping Wristwatches