查询词典 uranium

The results show that the graphite coat after vacuum heat treatment can protect the uranium surface.

经过真空热处理后的石墨层均能够起到对铀表面的保护作用。

To make clear to what degree the exchange of substance in the natural environment causes changes in local environment, the author resorts to geophysical techniques and means to monitor changes in salinity of shallow ground water, thorium/uranium/kalium spectroscopy gamma ray and minor elements in shallow surface layer.

为了探讨自然界的物质交换引起当地环境变化的程度，探索用矿场地球物理的方法和手段来监测浅层地下水矿化度的变化；钍、铀、钾自然伽马能谱的变化以及地表浅层微量元素的变化等。

Based on the fact of the gamma ray logging at uranium deposits in China, the auther points out that we should consider the matching of cables and the correcting of dead time while connecting FD-3019 gamma ray logger to digital logger.

针对我国铀矿γ测井实际情况，指出FD-3019γ，测井仪与数字测井系统连接时，应考虑电缆匹配和死时间修正问题。

The method is applied to the determination of nitrate ion in uranium dioxide sample with satisfactory results.

该法可用于测定二氧化铀产品中微量NO(上标-下标 3)，操作简单，可行性强，可以满足测定要求。

The toxic effects of uranium and lead to B.

实验考察铀和铅的质量浓度为1～2000mg／L。

Secular disequilibrium of uranium can lead to erroneous results.

铀的永久不平衡会导致错误的结果。

By calculating the ratio of uranium to lead, they determined that a dozen of the grains were very old indeed.

通过计算进入的铀的含量，他们确定了十二个锆石颗粒的确非常古老。

Its crystal accumulates atoms of uranium, which decay to lead at a known rate.

其晶体铀原子累积，导致在已知衰变率。

By measuring the relative abundance of two types of uranium and lead in a zircon, geologists can determine old it is.

通过测量相对两种铀和铅的锆、据地质学家能确定旧。

At the scene of the fire, toxic substances such as benzene, lead, uranium and asbestos can be inhaled or absorbed through the skin.

在火灾现场，象苯、铅、铀和石棉等有毒物质会通过呼吸或皮肤被吸收。

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。