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1·This is the only effectual way to secure our present and future happiness.

这是确保我们现在和未来幸福的唯一有效途径。《柯林斯英汉双解大词典》

2·The scheme is integrated and effectual.

这一整套方案完整并有效。

3·Quinine is an effectual preventive for malaria.

奎宁是有效的疟疾预防药。

4·Portcullis - Effectual protection in emergency.

吊闸-行之有效的紧急保护。

5·Remedial lung cancer most what is effectual medicine?

治疗肺癌最有效果的药是什么？

6·This will save you time and make your words more effectual .

这将节省您的时间，使你的话更有效。

7·With experimentations, the models are exactitude and effectual.

实验表明，建立的精确衰减模型是正确和有效的。

8·Field verifications show that the research result is effectual.

实际验证表明，所研究的成果是有效的。

9·Conclusion Clozapine effectual procedure shows a rule of exponential curve.

结论氯氮平的起效过程呈指数曲线规律。

10·ConclusionRisperidone effectual procedure showed a rule of exponential curve.

结论维思通的起效过程呈指数曲线规律。