共 50 条
[45]
CLOSED SYSTEM GAS CIRCULATING PUMP
[J].
REVIEW OF SCIENTIFIC INSTRUMENTS,
1976, 47 (09)
:1142-1143
[46]
Modified diffusion pump for analysis of gases in metals
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION,
1943, 15
:750-751
[47]
A LABORATORY PUMP FOR GASES WITH CINTINUOUSLY ADJUSTABLE CAPACITY
[J].
CHEMICKE LISTY,
1967, 61 (04)
:507-&
[49]
LABORATORY PUMP FOR RECYCLING GASES UNDER PRESSURE
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY,
1950, 42 (01)
:144-146