Assertion: mercury relay | /r/CapableOf | owe to environmental considerations
Facets:
value: about the toxicity of mercury
type: OTHER
Source sentences:
text: Owing to environmental considerations about significant amount of mercury used and modern alternatives, they are now comparatively uncommon.
text: Owing to environmental considerations about the toxicity of mercury, mercury relays are mostly obsolete though modern encapsulated units still have applications.