4-point subdivision scheme with two parameters
800 kV tank circuit breaker with two breaks
a circular hole with two cracks
a lance with two points
absorber with two spring
B spline function with two dimension
battery with two side terminals
casting method with two layers of castings per mould
cell with two liquid junction
complex fertilizer with two primary nutrients
deep slotted ball bearing with two columns
detritus mixed with two kinds of ash
digital controlled pipe boring machine with two boring heads
FBG corrosion sensor with two steel bar
genetic algorithm with two populations
hoisting with two cranes at the same time
injection mold with two stages