Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
churn [tʃəːn] n (machine) маслобо́йка; (also: milk churn) бидо́н
churn out vt производи́ть*(произвести́*perf) в большо́м коли́честве
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: