intermediate zoneintervening regionknucklesolar transition regiontransient regiontransition areatransition zonetransitional areatransitional zonezone of transition过渡: transition; transit区: H region; H过渡区过渡带: tra itional zone; tra itionalzone; transitional zone鞭毛过渡区: flagellar transition region封头过渡区: knuckle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:过渡区,即可在微信中查询翻译