'it's not so easy to prepare the sewer for visitors,' says Mr. Gottschall in Vienna, an engineer who once designed sanitary works.
维也纳的戈特沙尔说，在下水道开门迎客前做好准备工作并不是件容易的事。他是一位工程师，曾经设计过卫生工程项目。
Standard Practice for Least Cost (Life Cycle) Analysis of Concrete Culvert, Storm Sewer, and Sanitary Sewer Systems.
混凝土涵洞，雨水沟，排污沟系统的最低成本(使用周期)的标准规范。
Should a site waste treatment system not be available, permission could be obtained from the municipal or private sewer authority to put neutralized waste solutions to sanitary drains.
如果没有可用的废水处理系统，可经市政或私人下水道的授权将中和的废液流到污水下水道。在任何情况下，任何形式的废液都不允许进入雨水下水道。
In order to undertake the hydraulic analysis of urban sanitary sewer networks, the stochastic simulation of the nodal flow series is conducted in the paper.
为了进行城市污水管网系统的水力分析，对管网节点流量过程进行了随机模拟。
In accordance with the government's 'Sewage sanitary sewer construct program' plan, the universal rate of sanitary sewer will be estimated to reach 36% until 2011 in Taiwan.
依据“污水下水道建设方案”计划，预计至2011年为止，台湾地区之下水道普及率预估可达36%。
In accordance with the government's 'Sewage sanitary sewer construct program' plan, the universal rate of sanitary sewer will be estimated to reach 36% until 2011 in Taiwan.
依据“污水下水道建设方案”计划，预计至2011年为止，台湾地区之下水道普及率预估可达36%。
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