directional duality principle定向: directional; orient; orienta ...的: 4次方是 The fourth power of 2 i ...对偶: antithesis; antithetical par ...性: nature; character; dispositi ...原理: principle; tenet; axiom; the ...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:定向的对偶性原理，即可在微信中查询翻译
