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以下翻译请楼主审阅，其中有几处打字有点问题（如7ow），只能尽力理解翻译3. Results and discussion3.结仿启果和讨论 3.1. Pressure drop 3.1 压力降In literature the pressure drop data were frequently reported as the Z-factor, which was deBned as the ratioof PPSM=PPEM, where PPSM and PPEM are the pressure drops for static mixer and that for the empty tube, respectively (Boss & Czaskiewicz, 1982). 在文献中，压力降数据常常被报道为Z因子，它被定义为PPSM＝PPEM的比率，这里PPSM和PPEM分别为静态混合器的压力降和空管的压力降（Boss&Czaskiewicz，1982）。These values are based on the same ReEM, the Reynolds number for the empty tube, which is deBned as ReEM =Du=. Where D; u and are the tube diameter, the mean 7ow velocity, and the kinematic viscosity, respectively. 这些值都基于相同的ReEM，即空管的雷诺数，它被备纤如定义为ReEM＝Du=。这里，D,u,和分别为管的直径，平均7ow速度和运动粘度。Fig. 2 depicts the Z-factor for the present mixer based on the pressure drop data measured herein. 图2描述本混合器基于如此测得的压力降数据的竖带Z因子。The laminar-turbulent transition could be located at approximately of Re=150, which correlates with Paul and Muschelknautz (1982).层流－湍流转变可以位于大约Re＝150处，这与Paul 和Muschelknauts（1982）相关。 Such an observation suggests that the static mixer could initiate early transition to turbulence compared with the case of the empty tube (2,100–4,000).这样的观察结果表明，相比于空管的情况而言，静态混合器能够促发向湍流的早期转换In pertinent literature some correlations for the Z-factor for the Kenics mixer are available, like Grace (1971); Chen (1973); Wilkinson and Cli? (1977); Paul and Muschelknautz (1982); and Heywood, Viney, and Stewart( 1984), mostof which are based on mixers of respect ratios exceeding unity. 在相关的文献中可以得到有关Kenics混合器Z因子的某些相互关系，例如：Grace (1971); Chen (1973); Wilkinson and Cli? (1977); Paul and Muschelknautz (1982); and Heywood, Viney, and Stewart( 1984), 它们大多数都以幅面比超过1的混合器为基础。For the comparison’s purpose, only the correlation of Paul and Muschelknautz (1982) for laminar 7ow is depicted as arrow in Fig. 2. The agreement is satisfactory.为了比较起见，只有Paul和Muschelknautz (1982)关于层流7ow的相互关系被作为箭头在图2中做了描述。一致性是令人满意的。
