The operating period prediction of rotary kiln in cement plant is very important to production management.

水泥窑运转周期预测对水泥厂生产管理具有重要意义。

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In the operating period of two years, the type KCTK35/40-100 tubes of boiler economizer have been exploded many times.

某型号为KCTK35/40 100锅炉省煤器，在运行两年多时间内发生多次爆管事故。

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One original application on prolonging the operating period signed by the chairman of the board (printed and sealed by the applicant);

企业董事长签署延长经营期限的申请报告原件1份（打印，申请企业盖章）；

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But its wireline business remained under pressure: revenue fell by 3.6% in the period and operating profit slumped by 90%.

ECONOMIST: Broadband in America

From the overseas market, ZTE reported operating revenue of RMB 46.76 billion during the period, accounting for 54.2% of overall operating revenue and representing year-on-year growth of 24%.

ENGADGET: ZTE announces 2011 financials: turnover up, profits down, political scandals tricky

In the PC operating system market, the 1980s were a period of intense competition and rapid innovation, followed by the 1990s when Windows became utterly dominant and the pace of innovation slowed.

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