The occupation time in a cone in the positive quadrant for a standard two-dimensional Brownian motion is studied, and its first and second moments are given explicitly.

考虑标准二维布朗运动在正象限锥形区域的占有时，得到其一阶矩和二阶矩的表达式。

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The second part is the mode transition property and the energy occupation of each mode in step-index optical fiber according to the mode solution.

第二部分根据模式表达式具体分析了平面波在阶跃光纤中的传播特性。

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In America direct selling is typically someone's second job; in China it is a full-time occupation.

直销在美国通常是一个人的第二份工作，而在中国，直销是一份全职工作。

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The MST, who had occupied the land for six years before being moved by police in 2006, staged a second occupation in November in an attempt to pressure the courts into speeding up their decision.

BBC: Brazil landless leader Cicero Guedes shot dead in Rio

The second most dangerous occupation is fishing, with fishermen dying at a rate of 108 per 100, 000 of those employed.

FORBES: Magazine Article

With no cellular service in the area, AES managers in the country struggled to communicate with their staff as the occupation dragged into a second day.

FORBES: Power Putsch