Search on: VACUUM 
Descriptors Found: 1
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Descriptor English:   Vacuum 
Descriptor Spanish:   Vacio 
Descriptor Portuguese:   Vácuo 
Synonyms English:   Vacuums  
Tree Number:   G01.374.715.902
Definition English:   A space in which the pressure is far below atmospheric pressure so that the remaining gases do not affect processes being carried on in the space. 
Indexing Annotation English:   usually NIM
History Note English:   91(78); was see under ATMOSPHERIC PRESSURE 1978-90 
Record Number:   15021 
Unique Identifier:   D014618 

Occurrence in VHL: