球探足球比分直播

常见问题

实验室风机选择

  ZHENGQUEXUANZEFENGJI,SHIBAOZHENGTONGFENGXITONGZHENGCHANG、JINGJIYUNXINGDEYIGEZHONGYAOTIAOJIAN。SUOWEIZHENGQUEXUANZEFENGJI,ZHUYAOSHIZHIGENJUBEISHUSONGQITIDEXINGZHIHEYONGTUXUANZEBUTONGYONGTUDEFENGJI;XUANZEDEFENGJIYAOMANZUXITONGSUOXUYAODEFENGLIANG,TONGSHIFENGJIDEFENGYAYAONENGKEFUXITONGDEZULI,ERQIEZAIXIAOLVZUIGAOHUOJINGJISHIYONGFANWEINEIGONGZUO。JUTIXUANZEFANGFAHEBUZHOURUXIA:

  1.GENJUBEISHUSONGQITIDEXINGZHI,XUANYONGBUTONGYONGTUDEFENGJI。LIRU,SHUSONGQINGJIEKONGQI,HUOHANCHENQITILIUJINGFENGJISHIYIJINGGUOJINGHUA,HANCHENNONGDUBUCHAOGUO150mg/m3SHI,KEXUANZEYIBANTONGFENGHUANQIYONGDEFENGJI;SHUSONGFUSHIXINGQITI,YAOXUANYONGFANGFUFENGJI;SHUSONGYIRAN、YIBAOQITIHUOHANCHENQITISHI,YAOXUANYONGFANGBAOFENGJIHUOPAICHENFENGJI。DANZAIXUANZEJUTIDEFENGJIXINGHAOHEGUIGESHI,HAIBIXUGENJUMOUZHONGLEIXINGFENGJICHANPINYANGBENSHANGDEXINGNENGBIAOHUOTEXINGQUXIANTUCAINENGQUEDING。

球探足球比分直播  2.KAOLVDAOGUANDAOXITONGKENENGLOUFENG,YOUXIEZULIJISUANBUDAZHUNQUE,WEILESHIFENGJIYUNXINGKEKAO,XUANYONGFENGJIDEFENGLIANGHEFENGYAYINGDAYUTONGFENGCHUCHENXITONGDEJISUANFENGLIANGHEFENGYA,JI

球探足球比分直播  FENGLIANG:  L′=KLL  (1)

  FENGYA:  H′=KHH  (2)

  SHIZHONG

球探足球比分直播  L′、H′——XUANZEFENGJIYONGDEFENGLIANG、FENGYA;

球探足球比分直播  L、H——TONGFENGCHUCHENXITONGDEJISUANFENGLIANG、FENGYA;

  KL——FENGLIANGFUJIAXISHU,CHUCHENXITONGKL=1.1~1.15;

球探足球比分直播  KH——FENGYAFUJIAXISHU,CHUCHENXITONGKH=1.15~1.2。

  3.GENJUXUANYONGFENGJIDEFENGLIANGL′FENGYAH′,ZAIFENGJICHANPINYANGBENSHANGXUANDINGFENGJIDELEIXING,QUEDINGFENGJIDEJIHAO、ZHUANSUHEDIANDONGJIGONGLV。WEILEBIANYUJIEGUANHEANZHUANG,HAIYAOXUANZEHESHIDEFENGJICHUKOUWEIZHIHECHUANDONGFANGSHI。SUOXUANZEFENGJIDEGONGZUODIANYINGZAIJINGJIFANWEINEI,ZUIHAOCHUYUZUIGAOXIAOLVDIANDEYOUCE。

  4.FENGJIYANGBENSHANGJICHUDESHIFENGJIZAIBIAOZHUNZHUANGTAI(DAQIYALIWEI1.013×105 Pa、WENDUWEI20℃、XIANGDUISHIDUWEI50%)XIADEXINGNENGCANSHU,RUSHIJIYUNXINGZHUANGTAIBUSHIBIAOZHUNZHUANGTAI,FENGJISHIJIDEXINGNENGJIUHUIBIANHUA(FENGLIANGCHUWAI)。

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