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Though beta decay is in general a slower process than gamma or alpha decay, beta particles can penetrate hundred s of times farther than alpha particles.

虽然与γ衰变或α衰变相比，β衰变是一个较慢的过程，但β粒子的穿透距离要比α粒子的大几百倍。

Though beta decay is in general a slower process than gamma or alpha decay, beta particles can penetrate hundreds of times farther than alpha particles.

虽然与γ衰变或α衰变相比，β衰变是一个较慢的过程，但β粒子的穿透距离要比α粒子的大几百倍。

There are 8.6%~10.91% foreign matter in the sphenes, in which radioactive elements of strontium, cesium and uranium range from 4.26% to 4.58%. The change of structural cell parameters of sphenes is still very little,Δa=-0.0009 nm~0.0041 nm,Δb=0.0018 nm~0.0004 nm,Δc=0.0002 nm~0.0048 nm,Δβ=-0.10°~0.09° with high crystallinity of 99.27%~96.46%. Though, the age of sphene from the Fenghuang Mountain is about 1000 Ma, and experienced 775 Ma~1758 Ma geological evolvement and alpha decay, its crystallinity only decreased 3%, and its crystal shape and structure are still fine, indicating that sphene is of good ability to solidify radioactive elements. Therefore, sphenes are ideal minerals for solidifying nucleus waste.

通过对北祁连牛心山变质杂岩体中榍石(775Ma)和山西凤凰山花岗岩中榍石(1758Ma)的XRD及EDS等测试与研究，结果表明：两地榍石的杂质元素质量分数高达8.6%~10.91%，放射性核素锶、铯和铀的质量分数达4.26%~4.58%；晶胞参数的变化极小，△a=-0.0009nm~0.0041nm、△b=0.0018nm~0.0004nm、△c=0.0002nm~-0.0048nm、△β=-0.10°~0.09°，结晶度仍高达99.27%~96.46%，榍石经过10×10^8a的地质作用，结晶度仅减少了3%，显示榍石固化放射性系列核素的能力较强，虽经历了约775Ma~1758Ma的复杂地质演化及其所含放射性核素的衰变作用，其晶体结构完好，稳定性极高，是值得期待的理想核废物固化矿物。

They are on the order of 10% of the size of the text on your site even though they index every single alphanumeric word.

他们对10％的文字大小为您的网站上，即使他们每一个字母索引词。

What I did fear, though, were the guards' Alsatian police dogs.

我怕的是那些俗称狼狗种的军犬。

Then he saw that it looked like an Alsatian, though it was far too big to be a dog.

后来他看出这头野兽很像一条德国狼狗，然而又比狗大多了。

Turned me into a grade school alcoholic altar boy though.

叫我当学校喝酒名星

It is not really known why it was built though the popular theory is that was to worship the sun which rises, each year, directly over the altar stone every summer solstice.

人们至今还不是很了解为什麼要建造巨石阵，最为人所知的理由是：为了崇拜太阳在每年夏至时直接升至巨石顶端。

She was not aware of her alter ego Arlene at all, though Arlene knew all about her, and thought her weak.

她不知道她的知音arlene可言，虽然arlene都知道她，认为她软弱。

And yet the past, though of its nature alterable, never had been altered

从性质上论，过去自然是可以改变，然而还没有人改变得了它。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。