Ĺ˼֪٣
1./ˣ/˾ǼĹˣĤĿ϶йˣĤĿһ㶼0.1-1ףֻ⡢ȿɼʣͨĤˮֻڸйϴﵽ峺Ϊϸˮá
2.UF
UFIJпάĤѹΪƶóĤͬҺзɸֹ̡иһΪ600050Ϊ0.1-0.01ףˮҪǿԹϸɫء̿۵ȴлũҩݼϴӼȵͷӵлؽԼӵЧȥܵ˵˾ˮƷˮԴﵽֱõıЧˮʼڸвRO0.1ﲻֱõı߹ʱҪע⡣
3.ĤNF
ĤǷĤһ֣һֽڷͳ֮ѹĤĤĿΧ0.01-0.001֮䣬ڴ˿£ũҩݼϴӼȵͷӵлؽܹˡ
4.ĤRO
ĤROƵĸѹˮãԭˮ6-9ѹʹԭˮѹֻ0.0001ķĤѧӺϸͨˮųԭڲıˮ״ǰ£ﵽˮľרΪˮеġ˹˹
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