n.切线绘角法 angle between curve tangents: 两曲线之切线夹角angle between surface tangents: 曲面间切线平面夹角offense of plotting an armed rebellion: 阴谋武装叛乱罪an angle: 有利可图的事at an angle: 成一个角度; 倾斜地, 成一定角度下载手机词典可随时随地查词查翻译