portable night vision tester夜间: night; nighttime; in the nig ...视力: vision; sight; visus; seeing ...测验: test; trial run; examination ...器: implement; utensil; ware夜间视力测验器: night vision tester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:手提式夜间视力测验器，即可在微信中查询翻译
