shieldedtwistedpairstp屏蔽: shield; screen; screening双: two; twin; both; dual扭: turn round线: thread; string; wire无屏蔽双扭线: unshieldedtwistedpairutp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:屏蔽双扭线,即可在微信中查询翻译