The astronomers found an "X-ray mass" only a tenth of the mass found using the gravitational lens method.
天文学家发现“X射线估算的质量”仅有“引力透镜”方法估算的质量的十分之一。
The intensity of those X-rays can vary periodically, depending on the black hole's mass.
这些X射线的强度会根据黑洞的质量而周期变动。
The amount of heating (measured by looking at the X-rays emitted by the extremely hot gas) depends on the mass of the cluster, and can be used to estimate how much stuff is there.
热量的多少(可以通过查看极高温气体发出的X射线进行测量)取决于星系团的质量，而这个数据能够用于估计气体所在处有多少物质。
Chandra X-ray observations were used to find and characterise the whopping black hole with a mass of more than 3 million SUNS.
钱德拉X射线观测被用于查找和表述那个质量超过300万个太阳的惊人黑洞。
So, switching the area, moving the area to the other side, I'll get double integral of xdA is the area of origin times the x coordinate of the center of mass.
那么，改变一下区域，把这块移到另一侧，我们得到对xdA的双重积分,是原点那的圆面积乘质心的x的坐标。
If I look at the definition of the center of mass, it's the average value of x.
由质心的定义可知，它就是x的平均值。
Evidence from NASA's Chandra X-ray Observatory and the Magellan telescopes suggest a star was torn apart by an intermediate-mass black hole in a globular cluster.
来自美国宇航局的钱德拉X射线天文台和麦哲伦望远镜证据表明恒星被一个球状星团的中等大小黑洞撕裂。
Astronomers think the object shown in this Chandra X-ray Observatory image (in box) may be an elusive intermediate-mass black hole.
天文学家们认为在上面那张钱德拉X射线天文台的图片的匣子里的物体可能是一个难以捉摸的中等质量黑洞。
A low mass X-ray binary (LMXB) is a celestial system in which a relatively normal star is being eaten alive by a nearby stellar corpse, either a neutron star or a black hole.
低质量X射线双星(LMXB)是一颗相对正常的恒星和邻近的正在对其进行蚕食的恒星“遗体”构成的天体系统，“遗体”是中子星或黑洞。
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 whenever you make a measurement of the mass when it is a neutron star when you see the x-ray pulsations, you almost always find 4 that it is very close to 1.4 times the mass of the sun.
中子星的质量,当看到x射线的脉动,你经常会发现，它非常接近于,太阳质量的1。4倍4,但是在小部分情况在中。
It includes mass absorption of element itself, between elements and element at original X-ray wave length.
它包括元素本身、元素间和元素对某波长的质量吸收。
This is why people are encouraged to have X-rays taken in the mass radiography units which go to schools and factories and such places.
这也是为什么人们被鼓励在学校、工厂这类的大规模的放射线照相术中使用X光技术。
Observational evidence for stellar winds obtained from radio, infrared, visible, UV and X-ray regions are given. And two important parameters, terminal velocity and mass loss rate, are discussed.
在观测方面，给出了从射电、红外，可见光、紫外和X射线各波段得到的观测证据，并介绍了星风的两个重要参数、星风的终速和质量损失率。
Objective To improve understanding of X-ray and ct findings of lung mass through a retrospective study of ct - guided lung biopsy.
目的探讨通过CT导引穿刺活检结果对肺部肿块的X线- CT影像诊断的价值及再认识。
Further studies of this cluster are needed to explain the lack of agreement, between mass estimates based on the X-ray data and on the gravitational lensing.
以后对于这个星系群的研究需要被用来解释关于基于用X射线数据和引力透镜估算质量的不协调问题。
The new one, spotted with NASA's Chandra X-Ray Observatory, is the aftermath of a supernova observed in 1979, when a star roughly 20 times the mass of the sun collapsed in on itself.
这个新黑洞是利用美国国家航空航天管理局的钱德拉x射线望远镜发现的，是由1979年观察到的一颗超新星所形成的，当时那颗质量相当于大约20个太阳的恒星自己塌缩后形成了超新星。
X-ray manifestation of pulmonary hilar mass can be found lateral, or bilateral, but different X-ray feature.
引起肺门肿块的X线表现，可为单侧的，亦可是双侧的，并各有其X线特点。
The imprinter is used for the X-light detector to identify unqualified tires on the automatic product line of mass tires.
在大批量轮胎自动化生产检测线上，为了对不合格轮胎进行标识，设计了配合X光探伤机输出坏胎标记的标识器。
Black hole is the high-mass compact object, which is result of the gravity collapse of the star and most of the black hole system is X-ray nova.
黑洞是经过恒星引力塌缩而形成的一种质量较大的致密天体，几乎所有的黑洞系统是X射线新星。
Bone mass of the total body were measured using dual energy X-ray absorptiometry (DEXA).
采用双能量X线骨密度测量仪(DEXA)测量全身骨量及体脂百分比。
NDH was identified and characterized with infrared (IR), MALDI-TOF mass, and synchrotron X-ray absorption spectroscopies (XAS), and with computer simulations.
用红外光谱MALDI-TOF质谱和同步X 射线吸收谱以及计算机模拟对NDH进行了鉴定和表征。
The effect of pyrolytic temperature on the microstructure changes, mass loss and H/C ratio of polyarylacetylene was studied by thermal gravity analysis, element analysis and X ray diffraction.
根据热失重曲线、元素分析和X射线衍射分析了芳基乙炔聚合物炭化过程中的结构变化。
Fifteen of its new discoveries appeared to be so-called supergiant high-mass X-ray binaries (HMXB).
其新发现的15个被称作巨星-大质量X射线双星(HMXB)。
Fifteen of its new discoveries appeared to be so-called supergiant high-mass X-ray binaries (HMXB).
其新发现的15个被称作巨星-大质量X射线双星(HMXB)。
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