The candle type diatomite filter is most ideal.
过滤设备以烛式硅藻土过滤机为好。
Diatomite is an important nonmetallic mineral raw material.
硅藻土是重要的非金属矿物材料。
It is possible that the filter-aids could be made from low grade diatomite and perlite;
认为低品位硅藻土和珍珠岩经过适当加工是可以制成合格助滤剂的；
Low and middle grade diatomite purification is of great importance in its industrial use development.
中低品位硅藻土提纯在其工业应用开发中有着重要意义。
Low and middle grade diatomite purification is of great importance in its industrial use development.
中低品位硅藻土提纯在其工业应用开发中有着重要意义。
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