Working area for drag reduction agents (dra) is in turbulence area, and it can reduce resistance as well as increase transportation effectively.

减阻剂的作用区域在流体的湍流区，它能有效的降低流体阻力增加流量。

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Entry - as your hand enters the water to full extension you want to have minimum resistance and turbulence.

入水-当手掌入水时，你要想阻力和湍流最小，手掌就要完全伸直。

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The resistance created by her physical features and a sudden change in direction can be seen by the bubbles and drag turbulence that follows her. This is not a good follow-through.

从气泡和身后带出的湍流可以看出她身体所造成的阻力并有一个突然的转向， 这不是一个善始善终的出发跳水。

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