在结构、认证和要求设备、传动装置、重量与平衡限制、起落架、发动机等等方面都有着许多的差异。
There are differences in structure, approved and required equipment, rigging, weight and balance limits, landing gear, engine, etc.
平衡板的大小和做踏板操时使用的踏板差不多，它使用了与测定飞机重量相同的技术。
The Balance Board measures roughly the size of a step used in step aerobics classes, and USES the same technology that gauges the weight of airplanes.
颗粒与流体之间的摩擦力与其重量相平衡。
The frictional force between a particle and fluid counterbalances the weight of the particle.
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