便(Bian)携(Xie)式(Shi)氢(Qing)气(Qi)纯(Chun)度(Du)仪(Yi)型(Xing)号(Hao):(?) HP-501 ●(?) 仪(Yi)器(Qi)采(Cai)用(Yong)具(Ju)有(You)温(Wen)度(Du)补(Bu)偿(Chang)功(Gong)能(Neng)的(De)恒(Heng)温(Wen)型(Xing)热(Re)导(Dao)池(Chi)作(Zuo)为(Wei)纯(Chun)度(Du)传(Chuan)感(Gan)器(Qi) ●(?) 纯(Chun)度(Du),(?)流(Liu)量(Liang)同(Tong)步(Bu)显(Xian)示(Shi) ●(?) 大(Da)液(Ye)晶(Jing)显(Xian)示(Shi),(?)中(Zhong)文(Wen)菜(Cai)单(Dan),(?)易(Yi)于(Yu)操(Cao)作(Zuo) ●(?) 内(Nei)置(Zhi)气(Qi)体(Ti)过(Guo)滤(Lu)器(Qi),(?)稳(Wen)压(Ya)阀(Fa),(?)流(Liu)量(Liang)计(Ji)