The occurrent time and duration of severe arrhythmia were observed.

以严重心律失常的发生时间和持续时间为观察指标。

Objective To prevent and reduce the occurrent rate of pulmonary infection in artificial airway patients.

目的预防和减少人工气道患者肺部感染发生率。

Conclusion as long as combine work and rest, as well as reasonable food constitution, it will reinforcement physical resistance and prevent relate disease occurrent.

结论只要劳逸结合以及合理的膳食结构，就能增强身体的抵抗力，防止有关疾病的发生。

Objective: to understand the influence of the distance from the occurrent region of the sudden public health accident to the medical workers on medical personnel's emotion changes.

目的：考察突发公共卫生事件(应激源)发生在不同地域时，医护人员的情绪变化。

The movement of the place where the polar air mass and the horse latitude pacific air mass meet (joined band) affects the fire seasons and fire occurrent rates in the east part of China.

我国东半部地区预防森林火灾的季节是随着变性极地气团与副热带太平洋气团在南北移动中，两气团的交绥位置变换时，影响着我国南方、北方的防火季节和森林火灾的出现频率。