The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder.
正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截得。

As usual, Doerrs judgement was sound.
杜尔的判断照例是正确的。

Where Emma errs once, she is in the right a hundred times.
要挑爱玛的错处, 一百件事难挑一件。

There is no man but errs.
凡是人都会犯错误。

Which memory that errs not shall retrace.
无暇的记忆将会放映再现。

Man errs so long as he strives.
人在奋斗的过程中避免不了会犯错误。

On the Style feature of Sun Li'Prose Written In his Later Yerrs
其表温柔敦厚其里沧桑沉郁 试论孙犁晚年散文的文体特色

If either side errs, another cold war is a real possibility.
如果任何一方犯下错误, 世界完全有可能爆发新的冷战。