A mechanical analysis of the rubber bladder for the pressure test of the civil work pipeline was made with the Network analysis method and some practical examples were given to illustrate the method.
用网络分析法对管道试压用胶囊进行了力学分析并结合实际举例说明。
Studies have found higher bladder cancer rates among people in various occupations, including hairdressers, textile workers, truck drivers and workers in the rubber, leather and chemical industries.
此前已有多项研究结果显示，在理发师、纺织厂工人、卡车司机以及在橡胶、皮革和化工类企业里上班的人患膀胱癌的几率较高。
Studies have found higher bladder cancer rates among people in various occupations, including hairdressers, textile workers, truck drivers and workers in the rubber, leather and chemical industries.
此前已有多项研究结果显示，在理发师、纺织厂工人、卡车司机以及在橡胶、皮革和化工类企业里上班的人患膀胱癌的几率较高。
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