When wolves later reached the island, naturalists widely assumed that the wolves would play a key role in controlling the moose population.

博物学家们普遍认为，当狼群之后抵达该岛时，它们将在控制驼鹿数量方面发挥关键作用。

youdao

Many theories have been formulated to explain the role of grazers such as zooplankton in controlling the excluded grazers from regions of high phytoplankton concentration.

人们提出了许多理论来解释食草动物，如浮游动物，在控制浮游植物高度集中地区的食草动物方面所起的作用。

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A natural predator indigenous to India, Neodumetia sangawani, was found useful in controlling the Rhodes grass-scale insect that was devouring forage grass in many parts of the US.

人们发现来自印度本土的食肉动物 Neodumetia sangawani 有助于控制在罗德岛草场大规模泛滥的昆虫，这种昆虫吞食了美国多地的草场。

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And they will study whether it is involving in controlling sleep quantity alone, or also what scientists call the "wakefulness-behavioral drive."

VOA: special.2009.08.26

Only the operating system has controlling of byte zero NULL in the computer's RAM and so if a function ever returns null, aka zero, well, something must have gone wrong because that can't possibly belong to me that memory because by human convention zero is owned by the operating system; not by a program I wrote.

只用操作系统在内存中能够控制,字节0，并且如果一个函数返回，或者说0，好的，可能出错了,因为那可能是不属于我的内存,因为惯例上，0是由操作系统拥有的,而不是由我的程序拥有的。

哈佛公开课 - 计算机科学课程节选

The question of censorship and the telling of lies is introduced, in other words, as a question of military necessity, controlling the guards or the auxiliaries of the city, its warrior class.

审查的问题,及说谎的导入，换句话说，就像军备的问题，控制守卫人员,或说是城市的后备，战士阶级。

耶鲁公开课 - 政治哲学导论课程节选

The administration also wants the document to emphasize the role of personal responsibility in controlling weight.

FORBES: Magazine Article

The hypocretin system is known to play a key role in controlling sleep and wakefulness.

BBC: NEWS | Health | Immune system link to narcolepsy

Experience with such incentives shows that they do have powerful effects in controlling costs.

FORBES: The Two Alternatives For Health Care Policy