实效的英文：
actual effect; substantial results

参考例句：

The talks were frank and businesslike.
"会谈是坦率的,讲究实效的。"

The newfangled doctrine of utility
新奇的实效学说

He is too well aware of the doubts about the efficacy of nonviolence
对非暴力主义的实效的怀疑，他是深有体会和感触的。

If it is to have substantial results, there must be a workable system of inspection, with rewards and penalties.
为了保证实效，应有切实可行的检查和奖惩制度。

actual是什么意思：
adj. 实在的，实际的，事实上的

Actually, this was not a truce.
这其实不算是一种休战协定。

You must face the actual conditions.
你必须面对现实情况。

Entropy is actually a measure of disorder.
“熵”是一个针对混乱程度的度量数值。

effect是什么意思：
n. 效果；作用；影响；印象；所有物
v. 使产生；使发生；引起

This parameter has no effect.
此参数不起作用。

The drug was of no effect.
这药无效。

The helpful effect on propellant slosh effects was a secondary consideration
推进剂晃动的有利性影响是一个次要的考虑因素。

substantial是什么意思：
adj. 大量的；实质的；充实的；结实的；牢固的

to hypostatize; to substantiate
使实体化

This is a substantial building.
这是个坚固的建筑物。

The architecture of this house is very substantial.
这座房子的结构很牢固。