Assertion: compressor's use | /r/HasProperty | needed
Facets:
Source sentences:
text: Use of real gas properties is needed to properly design, test and analyze the performance of natural gas pipeline centrifugal compressors.
text: Use of real gas properties is needed to properly design, test and analyze their performance.
text: Use of real gas properties is needed to properly design, test and analyze the performance of these machines.
text: Use of real gas properties is needed to properly design, test and analyze their performance.