unimpaired

Conclusions So far as indications and contra-indications of Ender nail fixation are strictly followed, this treatment for femoral shaft fractures in children of age 5~ 10 years gives characters of small incision, anatomic reduction, unimpaired periosteum, short hospital stay, and quick functional recovery.

结论只要严格掌握其适应证和禁忌证，Ender钉治疗5~10岁儿童股骨干骨折具有切口小，解剖复位，不破坏骨膜、利于骨折修复，住院时间短，功能恢复快等优点。

During postovulatory relative rest stage ( e.g.day 2 of the cycle), no obvious effect by exogenous PGF_ ( 2 α) on the morphology of corpora lutea in formation was found, but progesterone secretion was inhibited, oestrogen secretion was unimpaired;

在排卵后相对静止期（如情期第2天），外源性PGF（2a）对正在形成的黄体形态上没有显著影响，但抑制孕酮分泌，对雌激素分泌没有影响；

This touches a point independent of senile decrepitude: we are finite beings and even if our vital functions continued unimpaired, there are limits to what our brains can store and keep adding to.

这揭示了一个完全不同于衰老的问题：就算我们的心脏能永远健康地跳动，我们的大脑却不可能不停地往里装东西。