WFD is very pleased to see many Deaf people who have represented their country governments and non-government organisations (NGO).

世界聋人联合会非常高兴地看到许多聋人谁也代表他们的国家政府和非政府组织（非政府组织） 。

I guess you are describing the location of the WFD Deaf Youth Camp.

我猜测您描述WFD聋青年营的地点。

Results show that the frequency of WFD is 47.7%, and is raising trend.

结果表明：冬小麦晚霜冻害发生频率为47.7%，且有增多的趋势；

Multi- site damage (MSD) and wide spread fatigue damage (WFD) are the main factors which affect structure integrity of military aging aircraft.

多处损伤和广泛分布疲劳损伤是影响军用老化飞机结构完整性的主要因素之一。