密封严密，耐氯根腐蚀，介质的结疤、结垢不影响启闭，这是费希尔纯碱专用蝶阀的最显著特点。
The sealing is tight, and can resist corrosions by chloride radical. Scaring and scaling not influence opening and shutting is the special feature of eccentric valve special for soda.
方法采用《消毒技术规范》(2002年版)有效氯含量测定方法以及标准偏差、方和根等统计学方法。
Methods Valid chlorine content measurement method and statistical methods such as standard deviation, and square and root etc in "Technical standard For Disinfection" (2002 version) was adopted.
目的：观察及评价推拿手法与西药氯诺昔康片对神经根型颈椎病临床疗效的影响。
Objective: Observes and the appraisal massage technique and western medicine chlorine Xikang the piece gets sick the clinical curative effect influence to the nerve root cervical vertebra.
方法二：用硼氢根阴离子交换树脂、硫粉和4-氯丁基二茂铁合成二二茂铁丁基二硫。
The second method:Diferrocenebutyl disulfide was synthesized from 4-chlorobutylferrocene using sulfurated borohydride exchange resin(SBER).
方法二：用硼氢根阴离子交换树脂、硫粉和4-氯丁基二茂铁合成二二茂铁丁基二硫。
The second method:Diferrocenebutyl disulfide was synthesized from 4-chlorobutylferrocene using sulfurated borohydride exchange resin(SBER).
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