| 1. | The medicine is still effectual .
那药仍然有效。 |
| 2. | The continual importations from peru and brazil exceed the effectual demand of those countries .
从秘鲁和巴西源源而来的输入，超过了那些国家的有效需求。 |
| 3. | About a hundred yards away on a small sand spit there was the occasional sharp in effectual pop of a carbine .
从百来码以外一个伸出在海水中的小小的沙滩角上，时而传来卡宾枪朝天砰的一响。 |
| 4. | Conditional prevention , the effectual model of crime control
犯罪预防的有效模式 |
| 5. | Portcullis - effectual protection in emergency
吊闸在危急时可靠的保护者。 |
| 6. | Portcullis - effectual protection in emergency
吊闸行之有效的紧急保护。 |
| 7. | Digital certificate is an effectual measure
数字证书是有效分发公开密钥的有效机制。 |
| 8. | Quinine is an effectual preventive for malaria
奎宁是有效的疟疾预防药。 |
| 9. | Among many ways , firewall is the most effectual one
在众多安全措施中，防火墙首当其中。 |
| 10. | Effectual methods of the accurate and quick classification of foreign books
快速类分西文图书的有效措施 |
