查询词典 helium group
- 与 helium group 相关的网络例句 [注:此内容来源于网络,仅供参考]
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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℃。
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" Noble gas:Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon , krypton, xenon, and radon."
稀有气体:通常排列在周期律中最右边一族的六种化学元素:氦、氖、氩、氪、氙和氡。
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Any of the chemically inert gaseous elements of the helium group (group 8A or 0 of the periodic table).
元素周期表中氦族中任何在化学上具有惰性的气体元素。
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Besides the foam egg cartons and green-capped water bottles, what astonished me was how much of the trash my group found was helium balloons.
除了用泡沫材料制成的蛋盒和绿色瓶盖的水瓶外,最让我大吃一惊的是,我的团队所发现的垃圾,最多的居然是氦气球。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。