valveless gravity filter 无阀重力滤池
automatic valveless gravity filter 自动无阀重力滤池
gravity sand filter 重力砂滤器 ; 重力砂滤池
gravity bag filter 重力袋滤器
gravity valveless filter 重力式无阀滤池
rapid gravity sand filter 快速重力砂滤池
Compared with metal and inorganic microporous filter media, the specific gravity of polymer microporous filter media is less than 1 or close to 1, and having light weight.
与金属类及无机类微孔过滤介质相比，高分子微孔过滤介质的比重小于1或接近1，重量轻。
In view of the measurements made by an onboard gravity sensor the Eotvos effect is introduced in the gravity measurement equation of a GPNS optimal filter.
考虑到运动载体上重力传感器的输出特性，在最优滤波器的重力观测方程中引入了厄特弗斯效应。
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。
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