fresh gas造句

• We view fresh gas entering the bed only in the form of gas bubbles .
  新鲜气体可视作仅以气泡形式进入床层。
• During this time, the bar prevents fresh gas from entering the central part of the galaxy
  在这段时间里，星棒阻止了新鲜气体进入星系的中心地带。
• The utilization of the pressure wave in the intake pipe and exhaust pipe which not only make more exhaust gas out of the cylinder but also improve the charge efficiency and make more fresh gas
  合理的利用进、排气管中的压力波，不仅能使更多的废气排出缸外，而且还可以提高发动机的充气效率，使尽可能多的新鲜工质充入。