[电] inquiry and communication system

chá xún yǔ tōng xìn xì tǒng ㄔㄚˊ ㄒㄩㄣˊ ㄩˇ ㄊㄨㄥ ㄒㄧㄣˋ ㄒㄧˋ ㄊㄨㄥˇ