除使用“免提”装置在通话时将移动电话与头部和身体保持一定距离以外，限制通话次数和时间，也会减少接触量。
In addition to using "hands-free" devices, which keep mobile phones away from the head and body during phone calls, exposure is also reduced by limiting the number and length of calls.
“如果年轻孩子，特别是学期儿童开始突然的增加他们面对移动设备屏幕的时间，我们将会保持重点关注。”他说到。
“We would be quite concerned if young children, especially preschoolers, began to dramatically increase their mobile screen time,” he said.
即便是有了当前的同步技术，也很难保持我的PalmPilot、桌面PC以及移动电话之间的联系和时间表的同步。
Even with current synchronization technology, it's hard to keep contacts and schedules synchronized across my Palm Pilot, desktop PC, laptop, and mobile phone.
健康睡眠中，我们的身体经常移动，以确保我们的肌肉不会长时间保持一个姿势。
In healthy sleep, our bodies move us around to ensure we don't hold muscles in the same place for too long periods.
无线网络为用户提供了在任意时间和地点进行通信和信息获取、并在移动中保持通信连接的能力。
Wireless networks provide users with the capability of ubiquitous communicating and access to information at anytime and keeping connections valid in continuous movement.
因此，如何利用好这段时间，争取和保持数据业务的客户，是郑州移动面临的一个挑战和机会。
Therefore, how to make good use of the time, and maintain the customer, Zhengzhou business move faces a challenge and opportunity.
“铯在有机土壤中保持移动的时间较长，这就是为什么英格兰和威尔士在高原地区仍然采取一些切尔诺贝利事故后的限制的原因，”他告诉BBC新闻台。
"Caesium stays mobile for longer in organic soils, hence why England and Wales still have some post-Chernobyl restrictions in upland areas," he told BBC News.
“铯在有机土壤中保持移动的时间较长，这就是为什么英格兰和威尔士在高原地区仍然采取一些切尔诺贝利事故后的限制的原因，”他告诉BBC新闻台。
"Caesium stays mobile for longer in organic soils, hence why England and Wales still have some post-Chernobyl restrictions in upland areas," he told BBC News.
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