A. 进气0.28mm,排气0.58mm B. 进气0.36mm,排气0.69mm C. 进气0.25~0.30mm,排气0.30~0.35mm D. 进气0.30~0.35mm,排气0.35~0.4mm
A. 100; B. 125; C. 150; D. 200。
A. 0.25 B. 0.5 C. 1