The source chamber is conflated four-waycross , a very simple tubular 900 electrostatic deflector and a new spring-clamp GaAs crystal mounting design to provide uniform crystal heating .
In addition, the measurement on pressure loss cross one side of four-way diverter valve has been carried out and some questions on pressure loss of four-way diverter valve are posed.
同时，也对四通换向阀进行了单侧压力损失测量，对四通换向阀说明书上的压力损失参数的准确性提出了质疑。
3
Four weeks later, I have emerged, feeling slightly soiled and more than slightly cross at the way that real life is so much more exciting than the novel I'm writing.