You might also contract your pelvic floor muscles just before and during any activity that puts pressure on your abdomen, such as sneezing, coughing, laughing or heavy lifting.
您可以在腹压增大之前和正在增加的时候收缩盆底肌，比如喷嚏、咳嗽、大笑或举重等情况下。
2
The lifting mechanism after optimization features better characteristics curves of lift force factor and hydraulic pressure.
优化后的举升机构，有较好的举升力系数曲线和油压特性曲线。
3
The International Whaling Commission was considering lifting the "international ban on whaling" because of pressure from countries like Japan and Iceland.