The increase in brightness of the x-ray sources over the same period has occurred far faster.
在同一时期内，X 射线光源亮度的增加速度要快得多。
The stethoscope is older than the x-ray, the ballpoint pen, Popular Science and pretty much everything else in your doctor's office.
听诊器比X 射线、圆珠笔、《大众科学》以及你医生诊所里绝大部分物件还要古老。
For velocity in the x, y, or z direction.
对于x，y，或z三个方向的速度。
So, let's do the first one on the x-axis.
首先算x轴上的。
What about the final two pieces: the + and the x?
最后的两项：+和x又代表什么呢？
The motion is only in the x-axis, along the x direction.
只在x轴，沿着x轴的方向进行移动。
By default, the plot command plots against the x and y-axes.
默认情况下，plot命令以x 轴和 y 轴绘图。
Well, one way to parameterize that is just use the x variable.
参数化的一个办法就是只把x看作变量。
So, the x axis is interatomic spacing, and the y axis is energy.
所以x轴是原子间距，而y轴是能量值。
So, for example, I tell you how to set the x-range to limit the range on the X-axis of the graph.
所以，例如，我告诉您如何设置x范围来限制图表中x轴的范围。
This observatory is observing such objects as black holes, quasars, and high-temperature gases throughout the x-ray portion of the EM spectrum.
该天文台能观测到天体电磁频谱的X射线辐射，比如黑洞、类星体和高温气体。
How do I get to the X-ray room?
请问怎么去X光室呢？
Do you support the X standard?
是否支持X标准？
您好。这是某某公司吗？
Lines 70-79 draw the X and Y axes.
第 70-79 行绘制X和Y轴。
Well, we know we are on the X-axis.
我们在x轴上。
He climbed two floors to the X-ray room.
他爬了两层楼到了X光室。
Let's say we do rotation about the X-axis.
也就是绕x轴旋转。
The doctor studied the X-rays of her lungs.
医生研究了她肺部的X光照片。
First, calculate the X-axis scaling factor.
首先计算x轴的比例因子。
The X-ray showed there was no break in his leg.
X光照片显示他的腿没有骨折。
The x and y values to add are specified in the URL.
在URL中指定了要添加的x和y值。
We put our bags into the X-ray machine for examination.
我们把包放进X光机里检查。
The X lock remains for the duration of the transaction.
在事务期间，x锁一直保持。
The x-ray detectors feed the input into computer programs.
X射线探测器把输入信息传入计算机程序。
According to the X-ray, your disease may be diagnosed as T. B.
根据X 光检查，你的病可能是肺结核。
By default, time (the units on the X-axis) is shown in seconds.
默认情况下，时间(x轴上的单位)的显示单位为秒。
The x-ray intensity suggests it had the mass of a small planet.
这束X射线的强度暗示，它具有小行星的质量。
And the X-ray data from SN 1979c could help to narrow that down.
并且来自SN 1979c的x射线数据帮助我们缩小了范围。
The most successful use of this pattern is the X Windows system.
此模式最成功的用法是XWindows系统。
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