在中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)物(wu)理(li)防(fang)御性与(yu)超导测(ce)(ce)试(shi)(shi)室(shi)，我(wo)(wo)(wo)们都(dou)观察到(dao)个(ge)猫和(he)(he)狗差未(wei)几高(gao)(gao)达的(de)携带滑轮的(de)不锈钢材(cai)质(zhi)(zhi)圆形状电线电缆或其(qi)他(ta)需要套屏蔽(bi)防(fang)波套的(de)物(wu)体(ti)(ti)，那便(bian)(bian)便(bian)(bian)杜瓦(wa)(wa)(wa)，它也可以结束(shu)将(jiang)中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)介(jie)质(zhi)(zhi)吸收并(bing)经途的(de)过程 人送过来测(ce)(ce)试(shi)(shi)室(shi)到(dao)处。在强人体(ti)(ti)磁场(chang)里面的(de)物(wu)理(li)防(fang)御性测(ce)(ce)试(shi)(shi)室(shi)，用(yong)的(de)较(jiao)多(duo)的(de)中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)介(jie)质(zhi)(zhi)是液氦(hai)。杜瓦(wa)(wa)(wa)我(wo)(wo)(wo)觉得并(bing)不奥妙，在100十(shi)几年前它不仅仅一小(xiao)我(wo)(wo)(wo)的(de)人名。1893 年1 月20 日(ri)，杜瓦(wa)(wa)(wa)颁布法(fa)律(lv)刊(kan)发(fa)发(fa)了然一款越(yue)(yue)来越(yue)(yue)的(de)中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)恒溫器（cryostat）——厥后(hou)被称(cheng)为杜瓦(wa)(wa)(wa)，平常(chang)吸收中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)介(jie)质(zhi)(zhi)。1898 年别用(yong)杜瓦(wa)(wa)(wa)瓶结束(shu)了氢的(de)夜(ye)化(hua)，来到(dao)了20.4K。翌年又(you)结束(shu)了氢的(de)固(gu)有(you)(you)，靠排空(kong)固(gu)态物(wu)氢外(wai)层的(de)水汽，来到(dao)了12K。杜瓦(wa)(wa)(wa)看(kan)见的(de)盛中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)夜(ye)化(hua)有(you)(you)害气(qi)体(ti)(ti)的(de)贮(zhu)槽，便(bian)(bian)便(bian)(bian)双层窗(chuang)户(hu)玻璃里面镀(du)银(yin)，并(bing)佣金(jin)抽(chou)真空(kong)系(xi)(xi)统(tong)度(du)系(xi)(xi)统(tong)体(ti)(ti)的(de)窗(chuang)户(hu)玻璃贮(zhu)槽，此(ci)类贮(zhu)槽厥后(hou)被兴盛成年人皆知的(de)日(ri)日(ri)常(chang)用(yong)品(pin)品(pin)——烧水瓶。 杜瓦(wa)(wa)(wa)我(wo)(wo)(wo)觉得便(bian)(bian)便(bian)(bian)个(ge)传(chuan)(chuan)热(re)(re)(re)贮(zhu)槽，它将(jiang)外(wai)物(wu)的(de)含(han)糖量与(yu)外(wai)部结构的(de)中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)气(qi)温(wen)介(jie)质(zhi)(zhi)隔离间距。科学研究清(qing)楚，难见的(de)传(chuan)(chuan)热(re)(re)(re)体(ti)(ti)例有(you)(you)：聚积传(chuan)(chuan)热(re)(re)(re)、高(gao)(gao)抽(chou)真空(kong)系(xi)(xi)统(tong)度(du)系(xi)(xi)统(tong)体(t🍌i)(ti)传(chuan)(chuan)热(re)(re)(re)、抽(chou)真空(kong)系(xi)(xi)统(tong)度(du)系(xi)(xi)统(tong)体(ti)(ti)粉末(mo)状传(chuan)(chuan)热(re)(re)(re)、高(gao)(gao)抽(chou)真空(kong)系(xi)(xi)统(tong)度(du)系(xi)(xi)统(tong)体(ti)(ti)双层以上传(chuan)(chuan)热(re)(re)(re)和(he)(he)高(gao)(gao)抽(chou)真空(kong)系(xi)(xi)统(tong)度(du)系(xi)(xi)统(tong)体(ti)(ti)多(duo)圮传(chuan)(chuan)热(re)(re)(re)。

共用面积(ji)：

  将液氮(dan)装(zhuang)在🐻(zai)(zai)杜瓦(wa)内，备样(yang)相互插(cha)在(zai)(zaiꦰ)杜瓦(wa)中(zhong)，湿度高达(da)77 K

充分利用：

  1、对研讨过渡金属离子、金属卵白中的自在基，及其功效及四周环境的环境，ESR液氮指形杜瓦将是一件ꦜ很是有效的东西。装备指形杜瓦的EMXnano 还能够用于研讨金属卵白，比方77K 下的Cu-，Zn-ꦯ 超氧岐化酶（SOD1）。

  2、对某些特别的利用，比方检测氮氧基（NO），ESR液氮指形杜瓦会是一个不错的挑选。它能大大地延长筹办样品的时候，和设置尝试的时候。样品的温度可到达77 K。

ESR指形杜瓦的特(te)色：

  ♦ 言简意赅(gai)易(yi)用(yong)

  ♦ 将杜瓦小瓶满液氮

&🦹nbsp; ♦ 原辅料外源(yuan)性加入杜(du)瓦(wa)品𒉰中闭式冷却塔，并验(yan)测(ce)