manta ray
- manta ray的基本解释
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蝠鲼
- 相似词
- manta ray所属的单词分类
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Animal / 动物
[799]
woolly rhinoceros · woolly mammoth · woolly bear caterpillar · wild cat · western meadowlark · Umbrellabird · Treefrog · thresher shark · Swallowtail Butterfly · spiny lizard
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Fish / 鱼
[140]
zebrafish · thresher shark · seabass · moray eel · manta ray · Lemon shark · Lanternfish · Gulper Eel · bluefin tuna · Greenland shark
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Ocean / 海洋
[142]
moray eel · marine life · manta ray · humpback whale · giant squid · euphotic zone · brittle star · intertidal zone · mako shark · orca
- 更多 网络例句 与manta ray相关的网络例句 [注:此内容来源于网络,仅供参考]
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The study about the flux and index of gamma-ray loud blazars show:(1)there is significant correlation between the luminosities in gamma-ray and VLBI radio energy band;(2)there are strong anticorrelarions among the observed indices of soft X-ray, hard X-ray and gamma-ray. For the FSRQs, the whole X-ray emission was contributed by synchrotron self-Compton emission, for the HBLs, the X-ray emission was dominated by synchrotron emission while the soft X-ray emission is dominated by synchrotron emission and the SSC emission dominate the hard X-ray energy band for LBLs;(3) there are strong radio-radio and radio-optical flux correlations for the quasar 3C 273. The higher frequency emission leads those in lower frequency. The multi-band complex indices strongly correlated with the high frequency flux which implies that the object is becoming bright when the energy spectrum is harden.
通过对γ噪Blazar天体的谱指数、流量的相关研究,发现(1)51个样本blazar的γ射线光度与VLBI光度之间存在显著相关;(2)软X、硬X以及γ波段的观测谱指数之间存在较强的反相关,对FSRQs,无论是硬X射线还是软X射线的辐射都是逆康普顿辐射的贡献,而对于HBLs来说,则是同步辐射的贡献,对LBLs,在软X射线波段以同步辐射贡献为主,在硬X射线能区以逆康普顿贡献为主;(3)3C 273的射电各个波段以及光学之间存在强相关,高频辐射一直领先低频辐射,3C 273的多波段复合谱指数和高频流量之间存在强的反相关,意味着当能谱变硬时对象变亮。
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Measurement of gamma ray activities can be transformed to that of alpha ray and beta ray activities. When natural radionuclides are well distributed in materials, there is fixed interrelationship between alpha ray and beta ray activities in any part of a decorative material and alpha ray and beta ray surface activities.
同时,ICRP和IAEA都已明确我国《放射卫生防护基本标准》GB4792-1984对公众的剂量限值不适用于天然放射性,而我们的国家标准仍使用土壤的剂量转换因子和公众的年剂量限值来推导建筑材料的核素限量。
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X-ray radiography, X-ray radioscopy and X-ray computed tomography were performed to the C preforms and C/SiC composites made by chemical vapor infiltration method. Elementary research of the simulation of X-ray nondestructive testing of C preforms and C/SiC composites was conducted. The main contents and conclusions are summarized as follows:(1) The equivalent absorption coefficients of graphite and SiC to Al (KAl/sic, KAI/C) were measured. It was found that in 35-45KV, KAl/sic=1.1~1.2 and KAl/c=0.08~0.12. That means X-ray radiography was much less sensitive to fiber defects than to SiC matrix. It was suggested that Al Image Quality Indicator would be used to evaluate the quality of X-ray radiographs of C/SiC.
本文选择X射线照相、X射线实时成像和X射线CT等三种方法对C纤维预制体及C/SiC复合材料进行了检测和研究,并对C/SiC复合材料X射线检测的计算机模拟做了初步的探索,主要研究内容和结果如下:(1)测定了C和SiC的X射线照相等效系数,在35~45KV的条件下,Al对SiC的等效系数K_为1.1~1.2,Al对C的等效系数K_为0.08~0.12,所以X照相射线检测C/SiC对C纤维缺陷不敏感,而对SiC基体缺陷敏感。
- 更多网络解释 与manta ray相关的网络解释 [注:此内容来源于网络,仅供参考]
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PATCHWORK STINGRAY:(片纹刺魟)
21. MANTA RAY(蝠魟) | 22. PATCHWORK STINGRAY(片纹刺魟) | 23. RAT-TAILED RAY(鼠尾刺魟)
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ray floret:(菊科的)舌状花
射髓;放射状组织;芒状髓 ray | (菊科的)舌状花 ray floret | 舌状花 ray flower;ray floret
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ray flower;ray floret:舌状花
(菊科的)舌状花 ray floret | 舌状花 ray flower;ray floret | 放射菌类;丝状菌 ray fungi;Actinomycetes