Two design strategies that three-way valve control unsymmetrical cylinder and four way valve control symmetrical cylinder were analyzed from principle and system structure aspects.
对船用舵机泵控系统中位置控制单元的三通阀控制非对称缸和四通阀控制对称缸的两种设计方案进行了理论分析和系统结构分析。
When they had got on some way they came to four crossways, each leading to a different country.
他们走了不远，来到十字路口，四个方向里每一个都通向一个不同的国家。
Age estimates ranging from four billion years for Mars's southern highlands to a few hundred million years in the youngest volcanic areas were obtained in this way.
通过这种方法，科学家们获得了火星南部高地40亿年到最年轻的火山地区（几亿年）的年龄估计数。
She slogged her way through four piles of ironing.
她辛辛苦苦一连熨了四堆衣服。
The way the United States developed or perhaps I should say the colonies, since the land that would become the Eastern United States, there were British colonies there four hundred years ago.
美国发展的方式，或者我该说，美国殖民地发展的方式，因为现在的美国东部所在地在400年前正是英国殖民地。
This is a direct result of the way we have produced our food in the last four decades.
这就是过去40年我们生产粮食的方式所导致的直接结果。
He held that job for four years and then worked his way up to being a school safety monitor.
他那份工作做了四年，之后通过努力成为了一名学校的安全监督员。
Every week he sent at least four letters this way.
每周，他至少要用这种方式寄四封信。
The tiny joystick has been replaced by cellphone-like four-way control buttons, and the page-turn Forward and Back buttons, which flank both edges, are silent now, for the benefit of sleeping spouses.
原本的小操作杆现在被类似手机的四向控制按钮取代了，而两侧边界上都有的翻页的前后按钮现在不会发出声音，照顾到你正在睡梦中的爱人。
The most common method is to split the categories into a four-way matrix with server and virtual machine problems on one axis and network and storage on the other axis.
最常见的方法是分类归入到四维矩阵中，矩阵的一个轴上是服务器和虚拟机，另外一个轴上是网络和存储。
When running the R6Mail benchmark using NotesBench, we found that Lotus Domino 7 with DB2 storage can support 15,000 users on a four-way AIX server.
使用NotesBench运行R6Mail基准测试时，我们发现使用DB2存储的LotusDomino7可以在四路AIX 服务器上支持 15,000 个用户。
5：A four-way galactic pileup appearsimminent, but the bluish spiral, 40 million light-years away, is seven times asclose as the rest of Stephan's Quintet.
图5：这张精美的照片包含了四个形状各异的星系团，但呈蓝色螺旋状的星系团离地球有四千万光年的距离，为斯蒂芬五重星系的其他星系距离的七倍。
Ahmadinejad is in a four-way race against the two pro-reform candidates and fellow conservative Mohsen Rezaei.
内贾德现在面临一场四人竞赛，其中两个对手是改革派候选人，而另外一个对手穆森•雷扎伊(Mohsen Rezaei)也是保守派。
In the incubated bubble of college, we can often lose sight of the fact that our life will go way beyond these four years; way beyond the grades and the achievements and even the mistakes.
大学充满了美丽的幻想，我们常常没有意识到我们的生活原本可以不止如此，我们可以得到更高的分数，取得更大的成就，甚至犯更高明的错误。
They constitute a four-way plug-in personality, each sparking the circuit in his own way.
他们在人格上仍是“四合一”，只是以各自的方式放出火花。
Query Q3 (5predsome) has multiple predicates and USES three side tables plus the main table, so it needs to compute a four-way join.
查询Q3 (5predsome)具有多个谓词、使用3个索引表和主表，因此它需要计算一个4路结合。
In addition, the measurement on pressure loss cross one side of four-way diverter valve has been carried out and some questions on pressure loss of four-way diverter valve are posed.
同时，也对四通换向阀进行了单侧压力损失测量，对四通换向阀说明书上的压力损失参数的准确性提出了质疑。
Four-way systems do not provide tilt adjustments.
四向的系统不能做倾斜的调整。
Now using four-way navigation on all pages; moving the joystick in any direction moves focus to the next link in that direction.
现在可在所有网页上使用四向导航；按下导航键的某个方向，选择框将会移动到这个方向上的下一个链接上。
At present, for the benefit of the four-way Zhangjiajie renovation project is in full swing, all construction workers have spared no effort in the beauty of Zhangjiajie for the future of the struggle.
目前，造福张家界的四路改造工程正在如火如荼进行着，所有的建筑工人都在不辞辛劳的为张家界美丽的明天奋斗着。
Sensible heat defrost is a new defrosting method which avoids disadvantages of four-way valve reverse defrost and USES the sensible heat of hot refrigerant vapor from compressor to defrost.
显热除霜是针对四通阀换向除霜方式的缺陷而提出的一种新型的除霜方式，它是利用压缩机排出的高温制冷剂的显热对蒸发器进行除霜。
How about four-way telephone conference.
四方电话会议怎么样？
How about four-way telephone conference.
四方电话会议怎么样？
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