共 50 条
[21]
HIGH-FREQUENCY VS LOW-FREQUENCY MECHANICAL VENTILATION
[J].
JOURNAL OF PEDIATRICS,
1981, 98 (06)
:1032-1032
[22]
HIGH-FREQUENCY AND LOW-FREQUENCY REGIONS OF BREMSSTRAHLUNG SPECTRUM
[J].
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY,
1974, 19 (04)
:519-519
[25]
LOW-FREQUENCY OSCILLATIONS BY INFLUENCE OF HIGH-FREQUENCY FORCES
[J].
ZHURNAL TEKHNICHESKOI FIZIKI,
1978, 48 (07)
:1321-1325