sine of the third order三: three阶: steps; stairs正弦: sine三阶: mihashi; mikai; mishina; sangai; sankai; trvalent正弦: [数学] sine◇正弦尺 sine protractor; 正弦曲线 sine curve; sinusoid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:三阶正弦，即可在微信中查询翻译
