For a given unit control sequence, the time relation of the unit in the worst case can be accurately obtained by computing once only with U-mode data.

对于给定的部件控制时序，用U -型数据，仅一次便可准确地计算出该部件最坏情况下的时间关系。

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To be more selective, you may prefix the mode expression with u to set the permission for users, g to set it for groups, and o to set it for others.

为了更具可选性，您可以给模式描述加前缀 u 来设置用户权限，g 来设置组权限，还有 o 为其他人设置。

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The suid and sgid bits are set and reset symbolically using the letter s; for example, u+s sets the suid access mode, and g-s removes the sgid mode.

suid 和 sgid 位使用字母 s 在符号上进行设置和重设；例如，u+s 设置 suid 访问模式，g-s 删除 sgid 模式。

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Since Borderlands 2 is a game designed to be played in co-op mode, the Wii U seems like a perfect fit.

FORBES: Why 'Borderlands 2' Would Be Amazing On The Wii U

Monday, data showed Americans' incomes picked up during December, but that more people chose to increase saving instead of spending, a sign the U.S. economy could remain in slow-growth mode this year.

WSJ: Financial Shares Drag on

They serve many of the fastest growing U.S. population centers and provide Americans with a fuel-efficient, environmentally responsible and safe mode of freight transportation.

FORBES: Ride Union Pacific To $112 As High Fuel Prices Propel Railroads' Margins Higher