With a handheld controller, they can walk through buildings, rotate artifacts, or rise above the model for a bird 's-eye fly-through.
拿着手持式控制器，他们可穿过建筑物，拨动文物，或者以鸟瞰方式纵观整个模型。
When data is flowing through a vulnerable environment, many of the available operating systems for phones and handheld devices offer little or no security.
当数据在易受攻击的环境中流动时，电话和手持设备的许多可用操作系统只能提供很少的甚至无安全性。
M-commerce (mobile commerce) is the buying and selling of goods and services through wireless handheld devices such as cell phone and tablets.
“移动商务”指通过手机和平板电脑等无线接入设备完成商品和服务买卖的流程。
M-commerce (mobile commerce) is the buying and selling of goods and services through wireless handheld devices such as cell phone and tablets.
“移动商务”指通过手机和平板电脑等无线接入设备完成商品和服务买卖的流程。
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