These Water Pins are currently available at the official Olympic Commemorative Pin Center at Gongmei Building, Wangfujing, Beijing.

这套水资源保护纪念章已在北京王府井工美大厦的官方指定奥林匹克纪念章中心对公众发售。

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The orbit and the vibration of the pin center and the attitude of the axis of pin in the revolute joint are measured by the TD800 test system.

使用TD800测试系统，能够实时地测出转动副轴心的运动轨迹、振动波形以及轴在空间的运动姿态。

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The store also acts as a community center: Every so often, its second floor hosts workshops on making artisanal hand cream or shooting pin-hole photography or playing guitar.

除此之外，他们的店铺还扮演着社区活动中心的角色：店铺的二楼常常都有讲习班，讲习内容则是自制护手霜、拍摄针孔照片或是演奏吉它的技巧。

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Trailers are typically attached to tractors by a "fifth wheel, " in which a coupling pin on the trailer fits into the center of a large horseshoe-shaped piece of metal.

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One call center scam involves calling the CSR to change the PIN on an ATM card.

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