Natural gamma ray spectral log is a new type of well logging method.

Heavy metals, such as iron and lead, make good gamma-ray shields because of their high density.

重金属像铁、铅等由于密度很大,都是防护γ射线的最好的防护材料.

The collapsar model of gamma-ray bursts.

γ射线爆发的黑洞模型.

After many years silence, the soft gamma-ray repeaters SGR 1900 + 14 and SGR 1806-20 werediscovered to re-burst by BATSE.

另外沉寂了多年的软重复暴源SGR1900+14和 SGR1806 -20的再次爆发也由BATSE发现.

The key technique approaches to improving the natural gamma-ray logging quality are surface data processing methods.

由于自然伽马测井受多种因素影响,通过在各个环节中采用行之有效的测井质量控制保障措施,才能确保自然伽马测井质量.

Missing gamma-ray bursts are one of the top mysteries on the agenda.

失踪的γ射线爆发是会议议程中的重点之一.

This paper presents a new automatic spectra-stabilization method for natural gamma ray spectralog.

文章提出了一种用于自然伽马能谱测井仪器的自动稳谱技术.

An explosion model of Gamma Ray as proposed by Prof K . S.

香港大学物理系郑广生教授提出的伽玛爆模型.

The identification of the clay mineral types by using natural gamma-ray spectroscopy log method was discussed.

自然伽马能谱测井不仅可以测得地层的总自然伽马值,同时还能得到地层的铀、钍、钾含量.

Annihilation can create gamma-rays or even new particle-antiparticle pairs.

湮灭能产生伽马射线甚至新的粒子 - 反粒子对.

Strictly speaking, it is not possible to absorb gamma rays completely.

严格来说, 不可能把γ射线全部吸收掉.

The radiation takes the form of high-frequency gamma rays.

这种辐射是以高频伽马射线的形式出现的.

In a vacuum, gamma rays travel in straight lines with the speed of light.

真空中, γ射线以光速沿直线前进.

Other forms of radiant energy familiar to us are radio waves, infrared rays, ultra-violet rays, X rays, and gamma rays.

我们熟悉的另外一些形式的辐射能是电磁波, 红外线 、 紫外线 、 X射线和伽玛射线.

A radioactive isotope of cobalt emits penetrating gamma rays that are used in radiation therapy.

曾有人建议用钴的另一种放射性同位素来制造钴弹,但从未发展.

Consequently, gamma rays will reach a particular target on the ground from many directions.

这样, γ射线必将从四面八方射达某一指定的地面目标.

High energy hot spots in the universe are revealed with gamma-rays, said Michelson.

他指出,通过探测伽玛射线, 科学家可以观测到宇宙中的高能辐射源.

When that jet meets surrounding gas or dust, it generates gamma rays.

当这种喷流遇到周围的气体或尘埃的时候, 伽马射线就产生了.

Still shorter than X 2 rays are gamma rays from radium.

比X线还要短的是镭的射线.

The instantaneous gamma rays are produced almost entirely before the weapon has completely blown apart.

瞬时γ射线差不多是在武器完全飞散之前就全部产生了.

Further, both gamma rays and neutrons can produce harmful effects in living organisms.

此外, r射线和中子都能损害生物组织.