Water well drill rod for eue in even -like, attaches according to the petroleum drilling tool size processing, also may defer to the user request processing.

水井钻杆为外加厚内平式，接头按照石油钻具尺寸加工，也可按照用户要求加工。

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Must act according to the user request the span design manufacture.

还要根据用户要求的跨度设计制造。

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The method comprises the following steps: invoking an audio playing program according to an audio playing request which is resolved from a received user operation message;

一种 音频快速播放方法及装置，包括：根据接收的用户操作信息解析出的音频播 放请求，调用音频播放程序；

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