Windows Phone 7 screens are required to respond to at least four simultaneous touch-points.

Windows Phone 7屏幕对于四个点同时触摸产生反应的实现是必须的。

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This conference included several sessions, including four simultaneous breakout sessions that were webcast only.

此次大会有多次会议，包括同时举行的四次分组会议，而这四次会议仅作网络报道。

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The associated digital receiver (not shown) can support the selection of any combination of four simultaneous outputs from the 32 wavelength channels.

相关数字接收机可以支持选择32个波段通道同时产生的任意四个输出。

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As the leader in group video-chat, ooVoo's new mobile apps are the only major communications product offering users four simultaneous video streams at once on mobile devices, and hosting a total of up to 12 participants on one call, for free!

ENGADGET: ooVoo updates its iOS and Android apps to support four-way video calls

The remote also offers up to four macro programs for simultaneous activation of multiple components and feature sets.

ENGADGET: Onkyo TX-NR807 and TX-SR707 receivers keep the updates rolling

The arrests were made in "co-ordinated and simultaneous operations in four regions of the kingdom, " including the capital Riyadh and the holy city of Mecca, the ministry was quoted as saying in a separate statement.

BBC: Saudi Arabia arrests 18 for spying