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1·The left atrial ejection force(LAF) immediately postcardioversion decreased significantly in non-rheumatic heart disease.

非风湿性心脏病Af患者复律即刻左房射血力（LAF）明显低于正常对照组；

2·Objectives:Left atrial dimension and function, as well as its ejection force and filling in elder patients with coronary heart disease and hypertension was evaluated by Doppler echocardiography.

目的：应用多普勒超声心动图测定老年冠状动脉粥样硬化性心脏病（冠心病）及高血压患者左心房的充盈、射血力、径线和功能，以探讨其改变的临床意义。

3·Parts of the downed F-117 wreckage -such as the left wing with us Air Force insignia, the cockpit canopy, ejection seat, pilot's helmet and radio -are exhibited at Belgrade's aviation museum.

F - 117的部分残骸，例如印有美国空军标志的左机翼，座舱罩，弹射座椅，飞行员头盔和无线电都陈列在贝尔格莱德的航空博物馆做展览。

4·A dummy was used for measuring the force produced during ground through canopy ejection and rocket trolley experiment.

用假人进行地面弹射、火箭滑车实验，测试假人与舱盖碰撞的外力值。

5·In the design of the plastic mould, a latch_lock mechanism was designed to transfer the machine driving force from the moving half to the fixed half to make the ejection system of the fixed half work.

在塑料模具设计中，设计一种延时脱开机构将机床动力由动模传递给定模，使定模顶出机构工作；在侧抽芯机构中设计出一种顶出机构，改善塑件的成型质量，防止塑件脱模时的变形。