guard gapguard intervalsprotective clearanceprotective gap保护: protect; defend; guard; safe ...防雷保护间隙: protective gap保护间隔: guard band; guard space保护间距: guard band无保护间隔: unguarded interval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:保护间隙,即可在微信中查询翻译