QGD

Conclusion OUR QGD therapy is a safe, effective method.

结论伽玛刀治疗全身肿瘤等病变是一种安全、有效，并发症较少的方法。

The synthetic aperture radar ( SAR) image terrain classification algorithm combining the respective characteristics of Beta-prime ( BP) statistic model and quadratic Gamma discrimination ( QGD) classifier is presented.

本文融合了Beta prime（BP）统计模型和QuadraticGammadiscrimination（QGD）分类器各自的优点，给出了一个完整的合成孔径雷达（SAR）图像地物分类算法。

Two types of perforated shims for vibration isolation QGD 1 and QGD 2 are developed for piping clamps and mounts of machines in marine vessel.

为适应我国舰船减振降噪的需要，试制出QGD－1和QGD－2两种穿孔型隔振垫，主要用于管路马脚，也可用于基座等振动部位。