放射性同位元素

Arguments and evidence cited against a miraculous origin of the shroud images include a letter from a medieval bishop to the Avignon pope claiming personal knowledge that the image was cleverly painted to gain money from pilgrims; radiocarbon tests in 1988 that yielded a medieval timeframe for the cloths fabrication; and analysis of the image by microscopist Walter McCrone, who concluded ordinary pigments were used.

争论和证据却与裹尸布的神奇起源相反，包括一封中世纪的主教写给教宗阿维尼翁的信，声称肖像是有人运用容貌知识聪明地印上去，为了从朝圣者身上获得金钱；1988年，碳的放射性同位元素测试得出这是一块中世纪时期制造的伪造物；分析肖像的显射镜技术人员沃尔特指出，这只是使用了一种平常的颜料。

Now I'm injecting a material that's tagged with a radioisotope.

我现在在注射一种以放射性同位元素做为标记的物质

Superscript 525 Californium is the only one man-made radiosotope emitted neutrons which can be used clinically for brachytherapy.

(上标 252)鉲是唯一放射中子的人造放射性同位元素，在临床上用作短距离放疗。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。