1. And how to enhance the classroom teaching effects by using video resource efficaciously is a great concern of all. 如何有效地利用视频资源提高课堂教学效果成为关注的问题。
2. The result of experiment shows that the arithmetic can raise the SNR and quickly segment the image and efficaciously detect the target. 实践证明该技术能有效提高图像的信噪比，从而达到有效分割和快速检测小目标的目的。
3. This paper designed a new and practical inner pipe-through collecting tube which can transform the solar energy into the heat energy quickly and efficaciously. 设计了一种新型实用的内管贯通式太阳能集热管，可以快速、高效地将太阳能转换为热能。
