Assertion: lunar module's engine | /r/ObjectUse | used on block e of the lk lander
Facets:
Source sentences:
text: KB Yuzhnoe A dissected combustion chamber of the RD-859 engine used on Block E of the LK lander.
text: KB Yuzhnoe A dissected combustion chamber of the RD-859 backup engine used on Block E of the LK lander.