[电] linear variable-differential tr-ansformer
xiàn xìng biàn liàng wēi fēn biàn yā qì ㄒㄧㄢˋ ㄒㄧㄥˋ ㄅㄧㄢˋ ㄌㄧㄤˋ ㄨㄟ ㄈㄣ ㄅㄧㄢˋ ㄧㄚ ㄑㄧˋ