The best replacement for mechanical is electrical engineering.

The best alternatives to mechanical are rated as following:
★★★★★  electrical engineering
★★★★  chemical digestion
★★★  organic solidarity
★★★  civil engineering
★★  fixed broadheads
★★  hydraulic disc brakes
★★  chemical engineering
★★  quartz
★★  vacuum secondaries
★★  electric fuel pump
★★  chemical weathering
★  electromagnetic waves
★  industrial engineering
★  aerospace engineering
★  membrane
★  computer engineering
★  electrical boost gauge
★  electrical
  automatic watch
  petroleum engineering
  electrical gauges
  vacuum advance
  tissue valve
  electric cooling fan
  automatic watches
  tissue valves
  electric fan
  computerized sewing machine
  electrical engineer
  tissue heart valve replacement
  vacuum secondary
  hydraulic cam
  electromagnetic
  biomedical engineering
  porcine heart valve
  computerized sewing machines
  hydraulic brakes
  membrane keyboard
  bioprosthetic valve
  hydraulic
  quartz watch
  digital scales
  quartz watches
  aerospace
  rubber dome
  electronic safe lock
  tissue heart valve
  electrical oil pressure gauge
  digital thermostat
  tissue aortic valve

Your alternative for mechanical is not listed? Suggest!
Speaking about mechanical, one probably shouldn't forget about electric fuel pump.

Other search terms related to mechanical and their ratings are:
★★★★★ electric fuel pump
You have in mind a companion for mechanical and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of mechanical in all years. Click on graph for more.
mechanical
electrical engineering
chemical digestion