您要查找的是不是：
- It can be the filtration layer of the dikes,river canal,seacoast,concrete and retaining walls. 可以做堤坝，河渠，海岸，混凝土，挡土墙的过滤层。
- 1 Filtration The filtration layer of the dykes, river canal, seacoast, concrete slope, reta... 发布者：张层所在地：河北沧州市行业：建筑、建材职位：业务主管工作年限：
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- Water can be purified by filtration through sand. 水通过沙滤可以变清。
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- Do you have a water filtration system? 你有自来水过滤器吗?
- Install proper filtration on pump inlet plumbing. 在进口处安装过滤器。
- A thin, flat layer or scale, as that of a fish. 外表组织薄而平的一层或鳞状物，如鱼鳞
- Edits the selected attachment filtration mask. 编辑所选附件过滤关键字。
- Water-oil separation and filtration system. 油水分离与过滤系统。
- Filtration of unwanted contents. 过滤不想要的内容。
- Filtration surgery is not the only option. 滤过性手术并不是唯一的选择。
- In filtration precipitated gelatinous. 用于过滤凝胶状沉淀物。
