【化】 channel test
channel; chimb; ditch; fossa; furrow; gouge; groove
【医】 channel; furrow; groove; gutter; sulci; sulcus; trough
experiment; test; try; try on; try out; examination; experimentation; trial
trial run
【计】 breadboarding
【医】 probation; test; tria
【经】 test; trial