hand placement

基本解释

On the other hand, this placement means that you need to help and be of service to others.
另一方面这也意味着你希望能够帮助和服务他人。
Next, Coach Quick shares a thorough explanation of the arm movement and demonstrates proper hand placement into the water.
其次，教练解释之后快速股票手臂的运动，并演示了适当的手放置入水中。
On the other hand spoil placement areas of agriculture and the environment placed in saline soil after the migration of harmful effects.
另一方面弃土放置地区的农业和环境将受到运移渍盐土置入后的有害影响。

The first shows a user's hands on a traditional hardware keyboard projected in an on-screen representation (as background, Apple mentions the ergonomic strain of looking down to check your hand placement, so perhaps that's the thinking behind this one).
ENGADGET: Apple patent application details method for detecting and displaying hand position on screen
It is radiating radio signals so it could interfere with the devices receiver, or some of the radio waves could be absorbed by other components and even more can be absorbed by the placement of a hand over the portion of the phone where the antennas are located.
FORBES: The iPhone 4 Antenna Unravelled