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:2021-12-19 23:03   Դ:δ֪   Ķ:

ʯīлеϳɺͻѧϳɡеʽ΢е롢SICѧԭѧֽȡ

1.ģѡܶΪ10-22g/dm3ľ۱ϩϰĻɷԾ۱ϩ֬ʯīֱС0.2mmͷʧ״ʯīֱС0.2mmĿףװʯī1-2mmʯī

2.ڰװõʯī״ϣͿͭϽרͿϣͿȿ0.5-1.0mm淿50c¸

4.װõģʧģɰھȵؼɰʹ΢ʵС2.0mmƵ50HZɰϲܷܲ⣬ոѹºϽҺ

4.۸÷Χ㷺ýУӦ˵и²ԣͨϲá¶ҪơǮǼʮٱһϺҵʯīӦȾƷȻ豸òãҪı䴫ṹ