In composites contained 1.5%C, VC particles were along austenite crystal boundary, while others of 3%C content were distributed uniformly.

在含碳量1.5%的铁基体中主要沿晶界分布； 在含碳量3%的基体中呈均匀分布。

youdao

The entries are as varied as the names we bestow: toilet, toilette, klo (in Germany), water closet, WC (and the Gallic counterparts double-v c or, in this impatient age, just VC).

WSJ: Jeffery Deaver on Bathrooms Around the World | Traveler's Tale