Assertion: valve | /r/MadeOf | single simple basic unit
Facets:
value: ofbeing
type: OTHER
Source sentences:
text: Also, in order to'provide a single basic unit whichfcanbe utilized in andfor' a largenumber of uses;- his desirable that a valve be provided which consists of a single simple basic unit which is capable ofbeing either normally opened or normally closed operation merely by changing the connections applied t6 the valve.