查询词典 alpha

When surface alpha ray flux of granite are higher than 0.0052Bqcm〓, radionuclides gamma ray analyses must be done to determine if their internal and external indexes are in the range of'A'limits of national criteria of China.

3.1 花岗石的表面α筛选值本论文得到的花岗石的表面α水平与外照射指数的拟合关系为： I〓=0.2802+181.3α-1614α〓从拟和曲线可得：当花岗石的表面α水平低于0.0052 Bqcm〓时，内外照因子都在国家标准GB 6566-2001对A类饰材的的限制以内。

The 洸 which obtains nine dying lifetimes with the bold attack of pushes down which it tries probably to break the God surface rock with telekinetic light ray God alpha.

获得九垂危的终身以大胆的攻击的洸推挤下来它大概设法打破上帝表面岩石与telekinetic光线上帝阿尔法。

The researches are concerned with alpha rays.

这些研究是关于阿尔法射线的。

In the same year he began to study the transformation of light elements by bombardment with alpha rays.

1920年代，博特用符合方法发现了来自上层大气层的穿透射线，这种射线现在被称为宇宙射线。

The researches are eoneerned with alpha rays.

这些研究都是关于阿尔法射线的。

We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium, by bombardment with alpha rays.

我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。

Just imagine no need for the shielding against dangerous Alpha- Beta- rays, no need for high voltages and pollution of the environment caused by all the plastics and metal parts production.

试想想，没有对危险阿尔法屏蔽-β需要射线，无高电压，是所有的塑料和金属零部件的生产造成的环境污染的需要。

But the positive electrons produced by aluminium under the action of a source of alpha rays continue to be emitted for some time after removal of the source. The number of electrons emitted decreases by half in three minutes.

但是，在射线动能源作用下铝产生的正电子在动能源撤走后的相当长时间里仍继续被排斥出来，且排出的电子数量在3分钟后减少一半。

The particles expelled when the atom explodes are protons, alpha rays or neutrons.

原子爆炸时排出的粒子是质子、a射线或中子。

It is calculated according as the quantity of air molecules ionized by the alpha rays decayed by radon and its progeny as the air is inhaled to the ionization chamber by the air pump.

采用的测量原理是通过气泵把空气吸入电离室内，通过测量氡及其子体衰变放出α射线使空气分子电离的量来间接测量空气中的氡浓度。

He says the strength of the new school will be business and its interaction with technology and public policy.

他说这所新学校的优势在于关注商业、技术和国家政策之间的相互作用。

The paper expatiates converyer belt self- lay technic prinicipium,means and advertent problems, besides does necessary explainer to its mostly technic guide lime,extend appvalue and society,economic benefits, at the moment, the paper has been underway to the means builing the leather belt, proposes the technique innovation point.

阐述了带式输送机输送带自铺装技术的原理、方法及铺装过程中应注意的问题，对其主要技术指标、推广应用价值和社会经济效益进行了必要的说明，对目前铺设输送带的方法进行了分析，提出了该技术的创新之处。