4 . practical meteorology : isopleths analysis ; streamline analysis ; use of tephigram ; interpretation of weather charts ; weather observations ; codes in common use ; principles and exposure requirements of weather instruments ; telecommunications procedures 4 .实用气象学:等值线分析流线分析温熵图应用天气图解释天气观测通用电码气象仪器原理及安装条件电信程序。
通用: be in common use; be current ...电码: code中文民用电码: ccc chinese civil code中文商用电码: chinese telegraph code通用电报字: conventional telegraph word通用电表: unimeter; universal meter通用电池制: universal battery system通用电导仪: universal conductiuity analyzer通用电动机: general-purpose machine; general-purpose motor; universal motor通用电光镜: panelectroscope通用电话网: general switched telephone network通用电机: general-purpose machine通用电流表: universal ammeter通用电流计: universal galvanometer通用电器: general electric通用电气: general electric (ge)通用电桥: universal bridge通用电位表: universal potentioneter通用电位计: universal potentiometer通用电压源: uvs universal voltage source通用电源: multiple power source; unps universal power supply通用电子管: universal valve中文商用电码;中文电码: chinese commercial code万用电桥,通用电桥: universal bridge美国通用电气: general electric