共 7 条
- [1] *ENG TECHN INC, 1997, ETIPR621604
- [2] KARUHN R, 1973, P 1 INT C PART TECHN, P202
- [3] AN ACOUSTIC PARTICLE COUNTER - PRELIMINARY RESULTS [J]. JOURNAL OF COLLOID SCIENCE, 1965, 20 (06): : 602 - &
- [4] LANGER G, 1968, POWDER TECHNOL, V2, P307
- [5] LANGER G, 1966, 5 TECHN M EXH AM ASS
- [6] LANGER G, 1968, STAUB REINHALT LUFT, V28, P13