共 50 条
[22]
A FULLY TRANSISTORIZED MULTI-RANGE RECIPROCAL TIME-INTERVAL METER
[J].
JOURNAL OF PHYSIOLOGY-LONDON,
1965, 181 (02)
:P10-&
[29]
A simple brightness meter
[J].
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA,
1937, 27 (08)
:292-293