您可通过定义具有过滤条件的虚拟表，来有效地减少从源所读取记录的数量，并减小规则的总执行时间。
You can effectively reduce the number of records that are read from the source, and reduce the overall execution time of a rule, by defining a virtual table with a filter condition.
一个1000英尺(300米)的再循环水系统，并且其配管的直径一致，则需要25小时的经过滤的再循环来去除总微粒。
A recirculating water system of 1000 feet (300 meters) with a consistent tube diameter would require as much as 25 hours of filtered recirculation time for total particle removal.
过滤式防微粒口罩总透漏率的试验方法。
Test method for total inward leakage of filtering particle respirator.
通过精神这一媒介，这种对主题，即人类，的过滤过程产生出这样的效果：让新鲜、独特、根本无法预科的成分总处于最显著的位置。
This filtering of the subject, man, through the medium of mind has the effect of keeping always in the foreground the element of novelty of uniqueness, of astonishing unpredictability.
工厂的维修人员已认识到，一个总的集中空气过滤装置不可能始终高效率运转，其滤芯更换周期会引起压缩空气质量的变化。
It has been recognized that a centralized air filter is not running at high efficiency at all times or its cleaning cycles cause variation to the quality of pressurized air.
溶解态铜中有机结合态占过滤海水中总铜的61.6%。
Dissolved organic complexing copper accounts for 61.6% of total copper in filtered seawater.
实验结果表明：苦豆子盐酸提取物的超滤和稀释过滤能有效除去蛋白质和其他不纯物，透过液中总生物碱的回收率高。
The results showed that the ultrafiltration with discontinuous diafiltration could effectively remove proteins and other impurities. The recovery ratio of alkaloid from the permeate was high.
通过接触过滤技术在冶金化工污水处理工艺中的应用，对处理后浓密废水所含悬浮物进行深度过滤，使处理后排放废水中的总锌、总镉浓度分别降到1。
By depth filtration of suspended material in effluent after treatment using contact filtration process, the total Zn and Cd concentration in the effluent discharge can be dropped to 1.
主过滤器进行连续清理，次过滤器收集细小颗粒，同时采用热泵来提升总热效率。
The primary filter for continuous cleaning, and the secondary filter for collection of fine particles. Heat pump can also be offered to increase the total thermal efficiency.
在印度大陆东部200英里（326公里）处，Tata咨询服务中心的总技师Ananth Krishnan也在为一个低技术的设备而激动不已：清水过滤器。
In Chennai, 200 miles (326km) farther east, Ananth Krishnan, chief technology officer of Tata Consultancy Services (TCS), is equally excited about an even lower-tech device: a water filter.
此时开启冷气机风机送风5- 8分钟，待过滤网干燥后，关闭冷气机总电源即可。
This time opens the air conditioner air blower to blow of 5-8 minutes, after treating the strainer dry, closes the air conditioner total power source then.
此时开启冷气机风机送风5- 8分钟，待过滤网干燥后，关闭冷气机总电源即可。
This time opens the air conditioner air blower to blow of 5-8 minutes, after treating the strainer dry, closes the air conditioner total power source then.
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