[电] pulse sample-and-hold circuit
mài chōng shì yàng hé bǎo chí diàn lù ㄇㄞˋ ㄔㄨㄥ ㄕˋ ㄧㄤˋ ㄏㄜˊ ㄅㄠˇ ㄔˊ ㄉㄧㄢˋ ㄌㄨˋ