early deceleration in fetal heart rate monitoring, a transient decrease in heart rate that coincides with the onset of a uterine contraction. late deceleration in fetal heart rate monitoring, a transient decrease in heart rate occurring at or after the peak of a uterine contraction, which may indicate fetal hypoxia.
DIFFERENCES:   Internal regulators only respond only to the inside, while external  regulators respond only to the outside.   SIMILARITIES:   Both internal and exâ¦ternal regulators can stop their processes.
Store Categories. JE Adams 7655 Upstream or Downstream Chemical Injector with Metering Valve. This brass body injector allows you to control water flow by means of an external adjusting knob. This allows the injector to cover a broader range of flows, taking much of the guesswork out of injector selection.