吴欣树1月23日在位于裕廊岛的罗德里工程（Rotary Engineering）公司举行的记者会上说，制药及石油化工业蓬勃发展，接下来三至五年的新投资总额高达100亿元，其中三分之一将投入下游支撑工业。
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Engineering practice indicates that the Short Time Vector-Spectrum is a new and usable method for rotary machinery fault diagnosis.
工程实践应用表明：短时矢谱分析对于旋转机械故障诊断是一种新的、较为实用的信息融合方法。
Rotary drilling is a dominant way in geotechnical engineering borehole surveying. Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
旋转钻进是岩上工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
And rotary orifice lute could overcome difficulties caused by traditional orifice lute, and has successfully been applied in seepage control engineering of Goupitan Hydropower Station.
旋转式封闭器能解决这一系列问题，并已成功地在构皮滩水电站渗控工程中运用。
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