查询词典 gamma ray

PTEN gene expression has relation to the dose of gamma ray.

提示PTEN基因与低剂量电离辐射生物学效应及电离辐射旁效应的发生存在非常密切关系。

The above-mentioned observations were significantly changed with the increase of UV exposure time or gamma ray irradiation dose.

从"保有生物活性"的观点，适当的照射强度分别为：紫外线20小时、加马射线10 KGy 。

A simple method is proposed in this paper for determining heat production from normal Gamma ray logs which are readily available from a vast number of boreholes.

介绍了一种从常规γ测井确定热产量的简单方法，其中测井数据可以从大量的钻孔中获得。

This research was conducted to use Gamma ray attenuation method to measure sediment concentration and to use water level change rate to determine flow rate.

本研究利用γ射线衰减原理测量含沙量、采用水位随时间的变化测定流量。

This dissertation analyzes the gamma ray detection methods presented in literatures and point out the limitation of popular methods, and then make discussion about the novel detection theory and technique for PET.

本文在分析了大量文献的基础上，对位置灵敏型γ射线探测器进行了深入的研究，提出了适合PET成像的新探测理论与技术，取得了一定的成果。

Scientists want to know the origins of the strange phenomenon of brief gamma ray bursts observed hundreds of times over recent decades.

科学家们想知道伽马射线短暂爆发这种奇特现象的起源，在最近的几十年里他们观测到了几百次这种现象。

This indicats that gamma ray irradiation can increase the frequency of mutations and produces special types of flower in Godetia grandiflora breeding.

以上结果表明，60Coγ射线辐射可以提高突变频率且诱变效应明显，有利于在大花高代育种中产生色彩丰富，花型、株型美观的变异类型

A single gamma ray might reionise 1000 hydrogen atoms," says Hooper."

一个单一的伽玛射线可能reionise 1000氢原子，"胡珀说。"

Gamma Ray Burst - a 2004 study told us that a GRB from a distance of just one kiloparsec could destroy half of Earth's ozone layer.

伽玛射线爆发- 2004年的一项研究告诉我们，从只有一个kiloparsec距离暴可能摧毁地球臭氧层的一半。

Grand Unified Theory, Lepton Stars and gamma-ray Bursts, Quasars

大统一理论，轻子星和γ射线暴，类星体

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。