In borderline cases the "pencil test" was used to judge the kinkiness of the individual's hair.

对于一些边缘案例，就用“铅笔测试”来决定他的归属。

youdao

A new prototype, developed by Sony, is thinner than a hair and is flexible enough to be rolled tightly around a pencil, even as it continues playing a video.

由Sony公司开发的一种新oled样机，厚度比头发还薄，即使播放视频的时候，也能够灵活的紧紧绕在一根铅笔上。

youdao

If it were, inevitably everyone who shaves on a regular basis would eventually be covered in pencil-thick or bigger hair sprouting out of their bodies from every place they shave.

假如它是真的话，那些定期剃须的人最终不可避免的会被从他们剃过的身体部位长出的像铅笔一样粗或者更粗的毛发所覆盖。

youdao

His wife, with a gray pencil skirt and her hair neatly swept up, beamed by his side.

FORBES: Carla Bruni-Sarkozy On Art, Philanthropy

And they were still nowhere near the bottom of the schemes that brewed in Mr Vesco's head, behind the pencil moustache, the slicked-back hair and the dark glasses, the very essence of a Hollywood fraudster.

ECONOMIST: Robert Vesco

The same is true of the pose in which Freddie initially sees him: pooled in light, brow clutched, pencil in hand, one careful comma of blond hair dangling down, as if posing for the portrait of a thinker.

NEWYORKER: Sail Away