When several individuals of the same species or of several different species depend on the same limited resource, a situation may arise that is referred to as competition.
当同一物种或不同物种中的几个个体依赖于同一有限的资源时，就会出现所谓的竞争的情况。
When several stitches fray, the fabric tears.
几个针脚破了，布料就会容易被撕开。
It helps to expose errors that only emerge when several units are put together.
它有助于暴露那些只有在多个单元放在一起才会呈现的错误。
Cleaning furniture in the water when several drops glycerin can clean more clean.
清洗家具时在水中滴数滴甘油可以清洗得比较干净。
One person was killed when several hundred people attacked a police station near the site.
数百人袭击附近一个警察局，造成1人死亡。
This is especially true in situations of uncertainty or when several choices are available.
在存在不确定性的情况下或者有多个选择时尤其如此。
When several compounds are formed, there is the possibility of more than one peritectic point .
当生成数种化合物时，就可能有一个以上的转熔点。
That's often useful when several modules export functions with the same name and you want to get rid of the offending ones.
也可以只包含除去某函数之外的其它函数,这在避免多个模块中函数的命名冲突很有用.
While brokering has a clear advantage when several ESBs participate, the expected volume of service invocations is also relevant.
虽然在几个esb共同参与时代理有着明显的优势，但预期的服务调用量也是很可观的。
When several RRs of the same type are available for a particular owner name, the resolver should either cache them all or none at all.
当一些同类型的资源记录对一个特殊的名字可用时，解析器应该将他们全部缓存或者全部不存。
When the inclusive decision is paired with a merge it can lead to a lack of synchronization when several branches execute in parallel.
如果将inclusivedecision与merge 组对，则在要并行执行多个分支时，inclusive decision 将导致缺乏同步问题。
A World Bank study has shown that wider benefits result when several rural infrastructure services become available to rural populations.
世行开展的一项研究表明，如果同时向农村人口提供几项基础设施服务，所产生的效益会更大。
The effort got a boost in 2010, when several donors established the Bangladesh climate change Resilience Fund to implement a national climate change strategy.
这项工作的力度于2010年得以加大，当时几个捐赠方组建了孟加拉国气候变化适应基金，旨在实施国家气候变化战略。
However, when several virtual machines run on the same server and start competing for hardware and network resources, the overhead is substantially higher.
然而，当多个虚拟机运行在同样的服务器上，并且开始竞争硬件和网络资源时，系统开销就会大大增加。
I was forcibly reminded of this fact over the holidays when several family members and neighbors press-ganged me into troubleshooting their Windows computers.
假期里，当家人和邻居像抓壮丁一样叫我去解决他们Windows电脑的故障时，我深刻的认识到这个事实。
Like the counting function, when several aggregations with grouping keys are used in a rule, the group and count operations must be cascaded as shown in figure 14.
与计数函数类似，当在一个规则中使用多个具有分组关键字的聚合，对分组与计数操作必须进行级联，如图14所示。
After all, they managed to cut crime when several trends, from the growing availability of crack cocaine to the continued breakdown of poor families, were against them.
毕竟，他们成功减少了犯罪，而与此同时，其他几种趋势，从可卡因越来越容易取得，到贫困家庭持续崩溃，却在持续上升。
Naturally best quality assurance results are achieved when several different approaches for test automation are employed, including GUI automated testing and unit testing.
必须通过多种自动化测试手段才能得到最高质量的保证，自动化gui测试和单元测试都包括在内。
When several software agents are involved in performing a common unit of work, reinventing AD hoc transaction protocols to achieve state alignment is not necessarily a good idea.
当几个软件代理参与执行一个公共工作单元的时候，重新发明专用事务协议去完成状态调整不是一个好主意。
It gets to be cumbersome to try to scroll back to find out what a person said, especially when several people are on online almost at the same time, each one competing for time to write a message.
如果试图回滚以查找某个人的消息的内容，这种方式就会显得十分笨拙，特别是当几个人几乎同时在线，并且每个人都在抢时间编写消息的时候，这个问题就更为突出。
In fact, when several dozen elementary - and middle-school kids from the Detroit area used this exercise for 15 minutes a day, many showed significant gains on a widely used intelligence test.
实际上，当来自底特律地区的几十名中小学孩童在每天采用这套训练方法15分钟之后，很多人都在一项应用广泛的智力测验中表现出了明显的进步。
Several customers were waiting when I arrived to open up the shop.
我到店里开门时，几个顾客已在等侯。
When I asked for the key to the room, the concierge handed me several messages.
当我要房间钥匙的时候，旅馆服务员递给我几张便条。
Several different approaches came to my mind when I was having lunch at the restaurant.
在餐厅吃午饭时，我突然想到几个不一样的解决方法。
When a child learns to play the violin, for example, several studies have shown that the brain region responsible for the fine motor skills of the left hand's fingers is likely to grow.
例如，当儿童学习拉小提琴时，几项研究表明，负责左手手指精细运动技能的大脑区域可能会增大。
The painter uses several brushes when painting.
这个画家作画时要使用几支画笔。
This would be an obvious advantage to wide-ranging deer, especially to a socially dominant buck when courting several adult females during the autumn rut.
这对涉猎广泛的鹿来说是一个明显的优势，尤其是在秋季发情期，它们要追逐几只成年雌鹿的时候。
When there are several different assignments, make sure they begin with one they enjoy, so it seems easy to get started.
当有几项不同的作业时，确保他们从自己喜欢的作业开始，这样看起来似乎更容易上手。
When there are several different assignments, make sure they begin with one they enjoy, so it seems easy to get started.
当有几项不同的作业时，确保他们从自己喜欢的作业开始，这样看起来似乎更容易上手。
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