氦

Influence of low energy He Ne laser on spinal motor nerve cell .

低能量氦-氖激光对脊髓运动神经细胞的影响。

The results show that the atmosphere has a big influence on the thermal stability of C_(60).C_(60) begins to decompose at 423.5℃in the air,the deomposed peak temperature is 668.5℃,but very stable in the helium atmosphere,only sublimate,the crystal shape of C_(60) has a certain influence to its thermal stability.The synthesized nine kinds of nitro-fullerene derivatives all have good thermal stability and their decomposed peak temperatures all exceed 350℃.The thermal explosion temperature for 5 seconds delay of product 4 is 253℃.The category,number and position of nitryl group in nitro-fullerene derivatives all have influence on their thermal stability.

利用差热分析仪和DSC-TG综合热分析仪对C_(60)及其硝基衍生物的热稳定性进行了研究，结果表明，环境气氛对C_(60)热稳定性影响很大，C_(60)在空气中423.5℃开始分解，放热峰值温度为668.5℃，在氦气中很稳定，仅表现为升华，C_(60)的晶型对其热稳定性也有一定的影响；合成得到的九种硝基富勒烯衍生物都具有较好的热稳定性，分解峰值温度均高于350℃；产物4的5秒爆发点测试结果为253℃。

A noble gas such as helium or neon; noble metals include gold and silver and platinum .

惰性气体，如氦和氖；贵重金属包括金、银和铂。

Contamination of noble gas in the crude oil of Gangxi oilfield.

以黄骅坳陷港西油田为例，测试并研究了原油中的稀有气体氦和氩同位素组成，并探讨了其示踪作用。

Taking Gangxi Oilfield in Huanghua Depression as an example,the isotopic compositions of noble gas in crude oil and their tracing significance were investigated.

以黄骅坳陷港西油田为例，测试并研究了原油中的稀有气体氦和氩同位素组成，并探讨了其示踪作用。

Liquid helium is inert, colorless, odorless, noncorrosive, extremely cold, and nonflammable.

液态氦不活泼，无色，无嗅，无腐蚀性，温度极低，不可燃。

General概述 Liquid helium is inert, colorless, odorless, noncorrosive, extremely cold, and nonflammable.

液态氦不活泼，无色，无嗅，无腐蚀性，温度极低，不可燃。

Since helium is nonflammable, special fire fighting equipment and instructions are not needed.

由于氦不可燃，不需要特殊的救火设备和指导。

Being both lighter than air and nonflammable, helium is used to inflate balloons and airship s.

由于既比空气轻又不可燃，氦用作充气球和飞艇。

Hydrogen was formerly used to fill airship s; nonflammable helium has replaced it.

氢过去用于填充飞船；无味的氦已取代它。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。