X-rays造句
121. Black holes gravitationally draw gas and dust into them, accelerating and heating this attracted matter until it emits high-energy radiation, including X-rays and ultraviolet light.
122. A neutron star has a gravitational field strong enough to generate X-rays.
123. Lakers spokesman John Black said X-rays of Bynum's knee were negative, but an MRI would be taken Monday and Bynum wouldn't travel to Seattle for that night's game against the SuperSonics.
124. They grew trays upon trays of colonies of Neurospora in a common growth medium. Then Beadle and Tatum bombarded every colony with X-rays, which were known to accelerate genetic mutations.
125. There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.
126. So by timing the pulses of the x-rays, you can get a handle on the Doppler shift of the neutron star.
127. Photon efficiencies and forward directional characteristics of X-rays for several kinds of often-used targets were calculated and analyzed.
128. The properties of polytrifluorochloroethylene foils are found to change, when they are irradiated by X-rays. Experiments shows that irradiation will affect the charge storage in the sample.
129. Such hard X-rays can pass through interstellar gas or dust which otherwise blocks ultraviolet, optical and soft-X-ray light.
130. "What always makes X-rays in general is electrons that are moving very fast and suddenly get stopped," Camara, a physicist, said.
131. The hard X-rays more readily penetrate dust and gas clouds in merging galaxies and reveal the presence of emission from the active black holes.
132. The device uses beams of x-rays a trillion times brighter than medical x-rays, and produces images at the atomic level.
133. In unclassified documents, U. S. government scientists estimate that at least 70 percent of a fission bomb's yield typically emerges as x-rays.
134. The women had annual X-rays of both knees along with analysis of blood levels of estradiol and urine levels of 2-hydroxyestrone and 16?hydroxyestrone, two estrogen metabolites.
135. Because the jets lie close to M106's disk, the cocoon generates shock waves and heat the gas in the disk to millions of degrees, causing it to radiate brightly in X-rays and other wavelengths .
136. Sending X-rays through the crystal: Depending on how they diffract , a mathematical model is used to determine and observe the protein's structure.
137. He definitely wants to perform further tests, such as a biopsy and some x-rays.
138. The basic yields of a CT scan, the CT numbers, are related to the attenuation coefficient of the diagnostic X-rays, actually reflect the electron densities of the individual tissue concerned.
139. In the domain of soft x-rays the design method of multilayered mirrors for lasers is described, with the results of normal incidence for some X-ray laser wavelengths which are studied at present.
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