A negative face has an outward normal pointing in a direction opposite that of the positive x-axis.
负向的外法线指向与正x轴相反的方向。
设x为a加b之和。
A clerk had slipped the wrong tab on Tony's X-ray.
一位职员失手把一个错误的标签贴到了托尼的X光片上。
The boss is conveying a negative impression of Mr. X without actually saying negative about him.
老板给X先生留下了不好的印象，却没有说他不好。
After three days without a winner, he X-rayed his sneaker out of boredom.
在三天没有赢家的情况下，他无聊地用X光照起了自己的运动鞋。
He should see a dentist and get an X-ray.
他应该去看牙医并进行X光检查。
In Lavie's game, people watch as the letters N and X appear and disappear in a certain area on the computer screen.
在拉维的游戏中，人们看着字母N和X 在电脑屏幕的某个区域出现和消失。
They had been using a relatively new technology called X-ray spectroscopy, and they were using this to examine an ore sample.
他们使用了一种相对较新的X 光技术来检测矿石样品。
We could only get a good look at the structure of the gears after gamma-rays were used to see inside, very similar to the way X-rays are used to see your bones.
我们只有在用伽玛射线观察内部之后才能很好地了解齿轮的结构，这和用X 射线看你的骨头非常相似。
X-ray examination of a recently discovered painting—judged by some authorities to be a self-portrait by Vincent van Gogh—revealed an under image of a woman's face.
对最近发现的一幅画作被一些权威人士判定为文森特·凡高的自画像，对其进行的X 光检查揭示了一个女人脸部的底层图像。
Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable.
因此，对初步判定稳定的踝关节骨折进行随访X 光检查是一种浪费金钱的做法。
The item was in his carry-on during X-ray screening at a security checkpoint at the airport, an FBI spokesman said in a statement.
美国联邦调查局发言人在一份声明中说，在机场安检处进行X 光安检时，该可疑物品就在他随身携带的行李中。
X-ray examination of thin slabs of rock sometimes reveals the ghostly outlines of tentacles, digestive tracts, and visual organs of a variety of marine creatures.
对岩石薄片的X 射线检查有时会发现可怕的触角轮廓、消化道和很多种海洋生物的视觉器官。
A good idea or product, such as a cheaper X-ray machine or better wind turbine, can be plugged into a global system of sales and manufacturing.
一个好的理念或产品，比如更廉价X 光机或更优质的风力涡轮机，都可以纳入全球范围的销售和制造体系中。
The 4G mission is set to launch from Cape Canaveral in the United States on a space X Falcon 9 rocket in 2019.
4G任务将于2019年从美国卡纳维拉尔角发射，搭载的是spaceX猎鹰9号火箭。
In one of its rooms, you can also have a chance to know how X-rays let you see inside your body.
在其中一个房间里，你还可以有机会了解 X 光是如何让你看到身体内部的。
A wind farm proposed for one of the two counties should be built in County Y rather than in County X.
在两者进行选择时，应该在Y县而不是 X县建立风电场。
Suppose the width of a rectangle is x metres.
设长方形的宽是x米。
Syringa x hyacinthiflora is a cross between Syringa oblata and S. vulgaris.
紫丁香是扁形紫丁香和普通紫丁香的杂交品种。
Table 1 shows a set of sample results between a client built with a toolkit "X" and a variety of servers.
表1显示了用工具包“X”建立的客户机与各种服务器之间的一系列样本测试结果。
This functionality, which was a nonstandard extension in XSLT 1.x, opens a world of opportunity for XSLT template authors.
这种功能在XSLT 1. x属于非标准扩展，为XSLT模板创造者打开了新的机会之窗。
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