self checking number自: self; oneself; one's own检: check up; inspect; examine数: frequently; repeatedly自检: self checking; self test; self-checking; self-examination; self-inspection; selftest; self-verifying; self－check报检数: quantity/weight declared下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:自检数，即可在微信中查询翻译
