
好词典

源自中古英语'schelding',与古英语'scield'(盾牌)相关,最终源于原始日耳曼语'skelduz'。
❶ 指用物理屏障或材料阻挡有害物质、辐射或电磁波的行为或装置,常用于防护设备或安全措施中。
“The lead shielding protects workers from radiation.”
(铅屏蔽层保护工人免受辐射。)
“The spacecraft has special shielding against solar flares.”
(航天器有专门抵御太阳耀斑的防护层。)
❶ 主动采取保护措施的行为,指用物体或方法阻挡伤害、干扰或不良影响。
“She was shielding her eyes from the bright sun.”
(她用手遮挡刺眼的阳光。)
“The umbrella shielded them from the rain.”
(雨伞为他们挡住了雨水。)
electromagnetic shielding — 指用导电或磁性材料阻挡电磁场干扰的技术,广泛应用于电子设备和通信领域。
“This smartphone uses advanced electromagnetic shielding to reduce interference.”
(这款智能手机采用先进的电磁屏蔽技术来减少干扰。)
radiation shielding — 专门用于吸收或反射电离辐射的材料或结构,常见于医疗、核能和航天领域。
“The hospital upgraded its radiation shielding for the new CT scanner.”
(医院为新CT扫描仪升级了辐射防护系统。)