尽管38度似乎是一个很远的距离(月亮大小的80倍左右),费米航天器上的大范围望远镜却可以一次观察到特别大的一部分天空。
While 38 degrees seems like a big distance (it is around 80 times larger than the size of the moon), the Large Area Telescope on Fermi sees a huge fraction of the sky at once.
我们测量距离,测量时间,然后两者相比得到速 度,就像你高中学到的那样。
We measure the distance and we measure the time, and we take the ratio to get the velocity, just as you learned to do in high school.
这幅通过WISE看到的景象跨越了超过2度的角度,在遥远的蛇夫座rho星云处大约覆盖了大概14光年的距离。
This view from WISE spans almost 2 degrees and covers about 14 light-years at the estimated distance of the Rho Ophiuchi cloud.
这还是没有把大气层因素考虑进去的结果,而大气层造成的变形、光线折射以及减弱对比度等因素都会缩短能看清长城的最远距离。
This doesn't take into account atmospheric distortion, refraction through a window, or less than ideal contrast, all of which would lessen the real distance at which it could be discerned.
但在实际上,要测量这些时间和距离,达到所需要的检测到纳秒级别差异的准确度,绝非易事。
But actually measuring those times and distances to the accuracy needed to detect nanosecond differences is no easy task.
旨在探讨住宅离医院的距离和获取医疗服务机会之间的关系并评价肯尼亚基利菲区基于医院监测的灵敏度。
To explore the relationship between homestead distance to hospital and access to care and to estimate the sensitivity of hospital-based surveillance in Kilifi district, Kenya.
对于许多陆地动物来说,从髋关节到地面的距离可以推测出活动时的能量消耗,其准确度达98%。
The distance from the hip joint to the ground predicted the observed energy cost of movement with 98% accuracy for a wide variety of land animals.
能看清长城的最远距离取决于成像系统(眼睛)的角度分辨率以及长城与它周围环境的对比度。
The distance the wall could be seen depends on the angular resolution of the imaging system (the eye) and the contrast of the wall vs. background.
当两点之间的距离相隔很远和要求更高的准确度时,需要使用球面模型。
The spherical model is better-suited when distances are further apart and more accuracy is needed.
相关度改进:使用距离作为记录中的增强因素,同时允许其他因素发挥作用。
Relevancy enhancement: Use the distance as a boost factor in the score while allowing other factors to play a role too.
该武器系统被从不同高度和距离进行投放,以演示系统的射程和精确度。
The weapons were released from various altitudes and distances from their targets, demonstrating the range and accuracy of the system.
许多空间距离算法要求采用以弧度表示的数据,而其他算法则要求使用以度表示的数据。
Many spatial distance algorithms require the Numbers to be in radians, while others can work with degrees.
排序和相关度改进仅使用距离计算,我将在本文的后面介绍它们的实际应用。
Sorting and relevancy enhancement (boosting) just use the distance calculations, and I'll show how they play out in practice later in the article.
按100 000英里电线长度除以镜子转动的次数来计算,360度与144度之比是2.5倍,那么每秒时间内电流传输的距离就是250 000英里。
Just as many times 100, 000 miles, as 144 degrees are contained in 360 degrees (the entire circle), viz., two and a half times. Hence, the current travels 250, 000 miles in a second.
exact 表示和距离有关的精确度。
exact indicates the degree of accuracy associated with the distance.
这个活跃的发光星系的位置是非常幸运的,距离被称为V407Cyg(天鹅座- V407号星)的亮星约38度。
The location of this flaring active galaxy is very fortunate. It is about 38 deg away from a star known as V407 Cyg.
TrES - 2 b距它所环绕的恒星只有3万英里(相比而言,我们距离我们的太阳有93万英里),这就使得TrES - 2 b表面温度超过1800度。
TrES-2b orbits its star at a distance of just 3 million miles (by comparison, we're about 93 million miles from our sun), which leads to surface temperatures on TrES-2b of more than 1, 800 degrees.
这颗巨大的行星大小同木星相当,被称作TrES - 2b,运行轨道距离其恒星只有大约300万英里,表面温度达华氏1800度(摄氏980度)。
Orbiting only about three million miles out from its star, the Jupiter-size gas giant planet, dubbed TrES-2b, is heated to 1, 800 degrees Fahrenheit (980 degrees Celsius).
这颗巨大的行星大小同木星相当,被称作TrES-2b,运行轨道距离其恒星只有大约300万英里,表面温度达华氏1800度(摄氏980度)。
Orbiting only about three million miles out from its star, the Jupiter-size gas giant planet, dubbed TrES-2b, is heated to 1,800 degrees Fahrenheit (980 degrees Celsius).
这是对初学者的一个合适的紧度。我们现在的目的是控制而不是抛投距离。
This is tighter than usually recommended, but the goal at this point is CONTROL, not distance.
从WISE的图像中估算蛇夫座ζ星的跨度约为1.5度,相当于12光年的距离。 (译者注:WISE— 美国宇航局广域红外探测器)
The WISE image spans about 1.5 degrees or 12 light-years at the estimated distance of Zeta Ophiuchi.
我船由于严重损坏,在进口灯标235度,距离2。5海里弃船。
My vessel was abandoned bearing 235distance 2.5off entrance light due to serious damage.
照片的清晰度足矣让我们区分出其上是岩石还是人造物,距离最近的一张照片是阿波罗17号的着陆点(如图),这也是迄今为止距此着陆点最近的一张照片。
They offer a sharper look that more clearly distinguishes man-made objects from rocks. The closest images are of the Apollo 17 site from 1972.
传统的检测地下管道漏水的方法是以声—电转换为基础,这使得灵敏度、深度和距离都受到很大限制。
To detect water leaking of underground tube, the traditional method relies on the sound-electricity transformation. Therefore, detection sensitivity, depth and distance suffer great limitation.
采用进口双镜,寻找目标快高清晰度CCD,快速定格图象无雪花点适应任何场合,隐蔽精致、发射接收距离500米以上。
Imported double mirror, looking to target fast high-resolution CCD, quick freeze image without snow adapt to any occasion, subtle delicate, transmitting and receiving distance of 500 meters.
现在的问题是,怎样将欣赏距离和人们的视觉灵敏度联系起来。
The question, then, is how to relate viewing distance to a person's visual acuity.
圆柱度-描述了一个条件的旋转面,使所有的点面距离相等,一个共同的旋转轴。
Cylindricity - describes a condition of a surface of revolution in which all points of a surface are equidistant from a common axis.
流量控制阀由电动执行器调节开度,可实现远距离控制阀门的开度,以满足系统计量的要求。
The open angle of the flow control valve is adjusted by electric actuator, which can be controlled remotely to meet the requirement of system measure.
流量控制阀由电动执行器调节开度,可实现远距离控制阀门的开度,以满足系统计量的要求。
The open angle of the flow control valve is adjusted by electric actuator, which can be controlled remotely to meet the requirement of system measure.
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