plane neutron source平面: plane; two dimensions; flat ...中子: neutron原: primary; original; former平面中子源: plane neutron source; plane source of neutron平面中置翼: planar midwing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:平面中子原，即可在微信中查询翻译
