The trial units of the vortex machine in the Canary Islands demonstrated that its treatment of salt water again permits the elimination of air, which subsequently eliminates the problem of biofilms.
水处理的模式迄今涉及沉淀和氧化，这意味着解决了固体物沉淀、取出和把空气泵进水体的问题，然后再进行化学处理。
We establish the trial sample survey strategy for whole industry waterway transport statistics, based on the Port and WaterwaySuperintendence units.
制定依托港航监督所站进行全行业水路运输量统计的具体试点抽样调查方案。
It has been a knotty problem to coordinate the erection and commissioning of large thermal power units and to guarantee the progress of commissioning and trial operation.
如何协调大型火力发电机组的安装和调试关系，保证机组调试和试运的进度，一直以来是相当棘手的问题。
It has been a knotty problem to coordinate the erection and commissioning of large thermal power units and to guarantee the progress of commissioning and trial operation.
如何协调大型火力发电机组的安装和调试关系，保证机组调试和试运的进度，一直以来是相当棘手的问题。
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