气圈高度小。
These curves also show the existence of the balloon limitation, which limits the Max balloon height and the min. yarn tension during the rings...
另外这些曲线还清楚地显示了“极限气圈”的存在，在生产中制约着气圈高度的最大极限和纱线张力的最低极限。
During the ascent the balloon is constantly widening because of the decrease of atmospheric pressure, and at a certain height it will inevitably burst.
在上升的过程中，随着气压的降低，气球不断膨胀，到一定的高度，气球就会爆破。
Achievement: Mr Harrison guided the balloon to a height of 22 miles above the earth's surface and was able to recover the camera as it parachuted back down to earth using a sat-nav device.
完成过程：哈里森先生使用卫星导航设备，先引导气球到达距离地球表面22英里的高空，然后在相机通过降落伞返回地面时，恢复相机的照相功能。
Objective to test the efficacy of kyphoplasty using an enhanced balloon expander in restoring the height of vertebral compression fractures (OVCF).
目的探讨增强型球囊椎体后凸成形术对椎体压缩性骨折后高度恢复的作用。
Conclusion Bilateral transpedicular kyphoplasty with single balloon can relief the pain and restore the vertebral height effectively with better outcomes.
结论单球囊扩张椎体后凸成形术治疗老年骨质疏松性脊柱压缩骨折可以有效缓解疼痛，恢复椎体高度，疗效满意。
The hot-air balloon doesn't depend on power, but float by means of wind. Because the wind direction and speed vary with the height, the driver can choose the proper height as the flight required.
但是，由于风在不同的高度有不同的方向和速度，驾驶员可以根据飞行需要的方向选择适当的高度。
The hot-air balloon doesn't depend on power, but float by means of wind. Because the wind direction and speed vary with the height, the driver can choose the proper height as the flight required.
但是，由于风在不同的高度有不同的方向和速度，驾驶员可以根据飞行需要的方向选择适当的高度。
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