
【名词&注释】
能见度不良(restricted visibility)、适用于(suitable for)
[单选题]The process during which liquid containing a reasonable amount of sensible heat at a particular pressure immediately changes into steam after admitted to a chamber at a lower pressure is called _____.
  A. boiling off 
  B. flash evaporation 
  C. condensation 
  D. none of the above