| 单词 | 放射线 |
| 释义 | 〔pasteurization〕The act or process of destroying most microorganisms in certain foods, such as fish or clam meat, by irradiating them with gamma rays or other radiation to prevent spoilage.射线杀菌法：破坏某种食品，如鱼或蚌肉内的大部分微生物的行为或过程，通过γ射线或其它放射线辐射的防止变质〔venography〕Radiography of veins or a vein after injection of a radiopaque substance. Also called phlebography 静脉造影术：在注入射线不能显著穿透的物质之后对静脉的放射线照相术 也作 phlebography〔ytterbium〕A soft, bright, silvery rare-earth element occurring in two allotropic forms and used as an x-ray source for portable irradiation devices, in some laser materials, and in some special alloys. Atomic number 70; atomic weight 173.04; melting point 824°C; boiling point 1,196°C; specific gravity 6.972 or 6.54 (25°C) depending on allotropic form; valence 2, 3. See table at element 镱：一种柔软、明亮的银色稀土元素，存在于两种同素异形体中，被用作便携式的放射线治疗设备的X射线源，也用于一些激光物质和特殊合金中。原子序数70；原子量173.04；熔点824°C；沸点1,196°C；比重依两种同素形体6.972或6.54(25°C)；化合价2,3 参见 element〔ray〕A thin line or narrow beam of light or other radiant energy.光线，放射线：极细的一条或极窄的一束亮光或其它辐射能〔amniography〕Radiographic examination of the uterine cavity and fetus following injection of a radiopaque substance into the amnion.羊水造影术：将造影剂注射入羊膜腔内后，用放射线观察子宫腔和胎儿〔starburst〕A shape or design with emanating rays that resembles the flash of light produced by an exploding star.星放射状：类似爆发的星产生的光芒那样的放射线的形状或图案〔opaque〕Impenetrable by a form of radiant energy other than visible light:放射线不能穿透的：能阻挡可见光之外的各种辐射的：〔dactinomycin〕An antibiotic of the actinomycin group, C62H 86N 12O 16, isolated from bacteria and used as an antineoplastic agent in the treatment of certain cancers. Also called actinomycin D 更生霉素：放射线菌素群中的一种抗生素，C62H 86N 12O 16，从细菌中分离出来，在某些癌症的治疗中，被用作一种抗肿瘤的药物 也作 actinomycin D〔renogram〕A graphic record of the passage of radiation through the renal system after injection of a radioactive tracer.肾探测图：一张注入放射性追踪剂以后放射线通过肾脏系统的图表记录〔francium〕An extremely unstable radioactive element of the alkali metals, produced artificially from actinum or thorium, having approximately 19 isotopes, the most stable of which is Fr 223 with a half-life of 21 minutes. Atomic number 87; valence 1. See table at element 钫：从碱金属锕或钍中人工提炼出的一种极不稳定的放射线元素，约有19种同位素，其中最稳定的是半衰期为21分钟的Fr223。原子序数为87；化合价为1 参见 element |
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