toshielding上部: headpiece; ridge屏蔽: shield; screen; screening局部屏蔽: local shield; partial shield; shadow shield内部屏蔽: internal shield上部中子屏蔽: upper neutron shielding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:上部屏蔽，即可在微信中查询翻译
