A crystalline compound, C18H 18, derived from pine tar, fossil resins, and tar oils.

一种结晶化合物，C18 H 18，从由松焦油、化石树脂及焦油中提取。

youdao

Other products: 420 reclaimed activator, T501 antioxidant, refined 420 activator, coal tar, pine tar, dipentene, white factice and black factice.

本厂其它产品有：420再生活化剂、T501抗氧剂、精制420活化剂、煤焦油、松焦油、双戊烯、白油膏、黑油膏等。

youdao

He's most famous for the so-called pine-tar incident, in which a home-plate umpire at Yankees Stadium disallowed a Brett home run on grounds that his bat bore an overly liberal coating of pine tar.

WSJ: Brett Returns as Royals Hitting Coach

He had smeared pine tar and dirt on his Red Sox cap.

NPR: Red Sox Game Locks in a Father's Day Memory

The club agreed to give Brett the bat he used in the infamous 1983 "Pine Tar Game" as part of the pact, but that wasn't the only odd perk.

CNN: Weird baseball contract clauses