英和和英

the efficacy of fertilizer

the efficiency level of work

power to be effective

be in effect

in an effective manner

Efficiency of stabilizers

The efficacy is miraculous.

effectiveness of matter (be effective or beneficial, have beneficial effects)

the efficacy of restrictive rulings

an effective cutback

excellent effect

effective and practical

a telling gesture

to reap the fruits―harvest the fruits―（of something）

a hysteresis effect

a forceful consequence

efficiency of labour

to be effective

the state of having no effect or validity

producing a strong effect

a large effect

the state of an effect being biased

vital function

of a condition, effective

the effect of the anesthetic

the action of power waning

perfunctory performance of duty

an effect rate of manure

catalytic activity

The improvement of work efficiency