要简洁地填写供货能力，可以使用如下短语：

1. "高供货能力" - "High supply capacity"

2. "充足库存" - "Adequate inventory"

3. "快速发货" - "Fast shipping"

4. "持续稳定供应" - "Continuous stable supply"

5. "能满足大量需求" - "Able to meet large demand"

6. "快速响应需求" - "Quick response to demand"

7. "定时交货" - "Timely delivery"

8. "高效物流服务" - "Efficient logistics service"

9. "灵活的生产能力" - "Flexible production capacity"

10. "高品质的产品保障" - "High-quality product guarantee"

以上短语都能简单地说明您的供货能力，方便客户快速了解您的产品和服务。