According to the principle of composite graded into seepage Wells pits multilayer filter material, water filtration by gravity flow top-down.
按渗井原理级配的复合多层滤料过滤，水按重力自上而下流动。
In the thesis, dielectric multilayer filter, the technology of which is fully developed, is used to filter and the electromagnetic actuated tunable structure based on MEMS is used to tune the Angle.
文中采用技术成熟的多层介质膜滤波片进行滤波，并利用电磁驱动的微机械转动结构实现角度调谐。
Under appropriate conditions a multilayer may also be employed as a filter.
在适当条件下，多层膜还可作滤波器。
The results show that the source can be used to calibrate XRD, mirror, multilayer, transmission grating and filter.
在该标定源上可以实现XRD、平面镜、多层镜、透射光栅和滤片的标定。
Small size, low weigh and high working frequency are the characteristics of multilayer ceramic microwave filter, and it is now being employed in communication and electric products application.
多层陶瓷微波滤波器是一种基于低温陶瓷共烧技术的新型滤波器，具有小型化、轻便化和高频化特点，在通信、汽车、数字化家电等产品中已得到广泛应用。
Joy City, a mall developer in Beijing, announced on social media it had installed a multilayer air filter: "Let's escape from smog and feel the beauty of the nature, " it said.
北京的商场大悦城（Joy City）曾在社交媒体上宣称它拥有多层空气过滤设施：“让我们逃离雾霾，感受自然之美。”
The transfer matrix method is used to study optical comb filter properties of one-dimensional multilayer photonic crystal.
把传输矩阵方法推广应用于研究一维多元光子晶体实现光学梳状滤波。
The utility model relates to a multilayer porous air filter plate which is composed of porous filter sheets, a mesh-shaped framework and accessories.
本实用新型涉及一种多层孔式空气过滤板，该过滤板由孔式过滤片、网状骨架及附件构成。
Under appropriate conditions a multilayer may also be employed as a filter.
在适当条件下，多层膜还可用作滤波器。
A multilayer band pass infrared thin film optical filter has been designed and manufactured which use lead telluride and zinc sulfide as thin film materials.
采用碲化铅和硫化锌作为镀膜材料，研制了空间红外光学系统使用的红外多层带通滤光片。
A multilayer band pass infrared thin film optical filter has been designed and manufactured which use lead telluride and zinc sulfide as thin film materials.
采用碲化铅和硫化锌作为镀膜材料，研制了空间红外光学系统使用的红外多层带通滤光片。
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