efficient frontier

(weak) efficient solution

(weakly) efficient solution

a clean and efficient government

absorption efficient

Achievement and efficient test

actual efficient ratio

additive efficient deformation rate

atom-efficient

bandwidth efficient channel

B-efficient

building energy efficient market

Clean and efficient utilization

co efficient of restitution

collection efficient of particulate

Communication-efficient

comparasion co- efficient

Composite high efficient water reducer

Comprehensive efficient index

construction energy efficient