1. Opposing Copyright Extension Commentary on Copyright Extension 
   评述著作权保护期的延长(一)
2. China will perfect the breeding, import, processing, marketing and extension system of improved varieties. By 2000 seeds of all main grain crops will be renewed; 50 percent of commodity seeds will be coated; and the unified seed supply rate and the coverage rate of improved varieties of rice, corn and wheat will be raised. 
   完善优良品种的繁育、引进、加工、销售、推广体系，到2000年，主要粮食作物用种全面更换一次，50％的商品种子采取包衣处理，提高水稻、玉米、小麦三大粮食作物统一供种率和良种覆盖率。
3. An extension ladder; an extension cord. 
   伸缩梯；延长线
4. Extension of the joint venture 
   延长合资经营期限
5. Making perfect or complete 
   获得圆满成功的；达到顶点的

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• 1. 完全扩张
  {n.}完全平均 perfect extension...完全扩张 perfect fifth...完全五度(音)度 perfect flower
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