In this system, active protection and passive protection are combined properly, multiple security protection components cooperate dynamically, and thus it is of great flexibility and extensibility.
该防御系统把被动防御技术和主动防御技术有机地结合在一起，多种安全防御组件间动态协作，具有很好的灵活性和可扩展性。
We use PNF stretching which is a combination of passive stretching and isometric contractions designed to increase flexibility more rapidly.
我们采用PNF拉伸，这是一种将被动伸展和等长收缩相结合的方法，旨在快速提高身体的灵活性。
Static stretching (relaxed passive) does increase flexibility but is not very effective in strengthening the muscle particularly at the end of range of motion.
静态伸展(放松被动)增加灵活性，但不是很有效地加强肌肉的运动范围，特别是的。
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