Assertion: crane's boom | /r/HasProperty | unsupported telescoping
Facets:
Source sentences:
text: Such cranes frequently use unsupported telescoping booms; these are made up of collapsible sections that can be extended outward like the sections of an old nautical telescope or spyglass.
text: Such cranes frequently use unsupported telescoping booms; these are made up of collapsible sections that can be extended outward like the sections of an old nautical telescope or spyglass.