dialern.拨号器dialn.拨号盘；刻度盘；日晷；钟面v.拨号；打电话dial-tone testing line拨号音测试线dial answer night service拨号夜间应答业务dial system B switchboard拨号系统乙交换台dial-up access provider拨号接入提供商dialyzable free thyroxine可透析游离甲状腺素dialyzed fetal calf serum经透析的胎牛血清dial-type potentiometer刻度盘式电位器Dialkylbenzene sulphonate烷基苯烷基磺酸盐dialkylated diphenylamine二烷基化二苯胺Dial instrument detection仪表检定

1. Hole on the face plate according to the dimension required.
   照盘面开孔尺寸在盘面上打出用来安装仪表的矩形方孔。