Most billboards are meant to be seen from a distance so the pitch doesn't have to be as small. The average pitch is 16 or 19 millimeters.

大多数广告牌都被安装在很远的位置上，因此像素间距无需过小，平均间距为16或19毫米。

youdao

In some airplanes and stadiums the seat pitch is so small that sometimes there is insufficient leg room for the average person.

在一些飞机和体育场馆的座椅是那么小，有时没有足够的腿部空间，让一般人负担得起。

youdao

Results show that the density and the compressive strength increase with an increase of the average (particle) size of granular pitch coke.

结果表明：沥青基炭复合材料的密度和抗压强度随焦炭颗粒平均细度的增大而增加。

youdao

With a partner and gear, you can probably climb an average pitch (usually up to 200 feet) in about half an hour.

WSJ: Training for the Big Wall | By Michael J. Ybarra

The team analyzed data on loudness, pitch and timbre from just under half a million tracks spanning 55 years, finding the average volume of recordings has increased in that time -- said to be the doing of record labels so songs stand out amongst other radio noise.

ENGADGET: Researchers prove your grandmother right, modern music is louder and all the same