They hope the new drug will prove especially efficacious in the relief of pain.

　　他們希望這種新藥能在緩解疼痛方面產生特效。

　　The nasal spray was new on the market and highly efficacious.

　　這種鼻腔噴霧劑是新上市的，非常有效。

　　This medicine is highly efficacious.

　　這藥很靈驗。

　　Study on Criterion of Efficacious Samples Number in Process Optimization Under Uncertainty.

　　不確定條件過程優化有效抽樣點數的確定。

　　An efficacious method for converting measurement of the little plate coordinate.

　　一種行之有效的小夾板坐標轉換測量方法。