epithem是什么意思

用法例句

Based on model test, the mechanism and effectiveness on abatement of cavitation by through water after culvert valve of high lift lock have been discussed.

在模型试验的基础上，对高水头船闸阀门后廊道内通水消除空蚀破坏的机理及减蚀效果进行了探讨，指出在合理的通水方式下，对提高收缩断面的压强效果是显著的。

Producing 32.5R Portland cement by using fly ash to substitute partly clay;

用粉煤灰替代部分粘土原料生产32.5R普通水泥

It also points out draining test must made according to standard needs before finishing the project,so as to improve the project quality and ensure the normal use.

从工艺、管道、用户、人为破坏因素等方面分析了室内排水管道堵塞的原因,并提出了相应的防堵措施,指出在工程竣工验收前必须按规范要求对室内排水管道做通水试验,从而全面提高工程质量,保障正常使用。

The key to the solution of maximum discharge capacity of plastic drainage stack in building was to determine the maximum allowable fullness ratio, α of the stack.

解决塑料排水立管通水能力的关键在于确定立管最大允许充水率α值。

Application Enforcement of the plastic drainage pipes had to stablish the theory for estimating of the maximum discharge capacity of the plastic drainage stack in building and the core issue of the theory was to determining of the maximum allowable fullness ratio of the plastic stack.

塑料排水管的大力推广与应用必须解决塑料排水立管的最大通水能力这一理论问题，而解决这一问题的关键在于确定塑料排水立管最大允许充水率α值。

Discussion on examination methods of discharge capacity of plastic drainboard and equivalent opening size of filter;

塑料排水带通水量和滤膜等效孔径检测方法的讨论

Effect and selection of discharge capacity of prefabricated vertical drains during consolidation;

固结排水中排水带通水量的影响及选择

An introduction is given to the raw materials, forms, and engineering characteristics of the plastic blind drain-a new type of geosynthetic, and it is pointed out that the porosity of opened voids, porosity, discharge capacity, and compressive strength of materials can be taken as the performance indexes of the plastic blind drain.

根据该材料的工程特性提出了表面开孔率、空隙率、通水量、抗压强度等可作为塑料盲沟的基本性能指标。