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- alternating double filter 交替双过滤器
- The result of removal of CODCr and NH3-N from urban sewage was experimentally investigated by using biological aerated filter bed with double filter material of slag and zeolite. 研究炉渣-沸石双层滤料曝气生物滤池处理城市污水中CODCr和NH3-N的去除效果,试验结果表明:滤池中两种滤料显示出良好的互补性,滤池对CODCr和NH3-N的去除率稳定;
- Double filters half mask Evamasque 双滤盒半面罩
- Because the intension of flocculent mass is loose after daily sewage disposed by biodegradation technique,it has good effect for double filtering layers that is made up of quartz sand and water slag. 电厂生活污水用生物法处理后,由于水中的悬浮物疏松,采用石英砂和水淬渣组成的双层滤料过滤更适合。
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- Large capacity and doubled filter 大容量和复式滤芯
- I want a double room with a view. 我要一间能看到风景的双人房间。
- A device used to convert direct current into alternating current. 反用换流器用于变直流电为交流电的仪器
- He was so fat that he had a double chin. 他胖得有双下巴了。
- as an alternative double acting with same spcs. 具有相同规格的可选择性双重作用。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- A couch performs a double service. 躺椅有双重的服务。
- A minimum point in a wave or an alternating signal. 波谷波或交错信号的最低点
