helium什么意思解释？

helium的音标：helium的英式发音音标为：['hi:liəm]helium的美式发音音标为：['hiliəm]...

Helium is a very light gas.氦是一种非常轻的气体。A synthetic element produced in trace quantities by helium isotope bombardment of curium.锎一种合成元素,由氦同位素轰击锔可得到微量的这种元素.helium balloons for the children’s party儿童聚会用的氦气球Helium is a gas u...

Helium is a very light gas.氦是一种非常轻的气体。Helium is a gas used in balloons.氦是一种用于气球的气体.Unlike helium - 4, it cannot be produced by radioactive decay.与氦 - 4不同之处是, 氦-3不能由放射性衰变产生....

a publicly owned enterprise一个国营企业He was dismissed for publicly insulting prominent politicians.他在大庭广众之下辱骂政坛显贵，结果被撤职了。Both privately and publicly he castigated the US - Japanese Security Treaty.他在私下和公开场合都曾攻击日美安全条约.He publ...

诺尔斯，[人名] [英格兰人姓氏] 诺尔斯地貌名称，来源于中世纪英语，含义是“山顶”(top of a hill)，[人名] [英格兰人姓氏] 诺尔斯取自父名，来源于同一个词，用作别名，身材短粗者，[地名] [美国] 诺尔斯...

goldbrick的现在完成时为：goldbricked...

v.使…相配(match的ing形式)adj.相配的，一致的，相称的n.匹配...

She climbed the steps and proceeded along the upstairs hallway.她爬上楼梯，顺着楼上的走廊走去。We climbed higher so that we might see the scenes better.我们又往高处爬以便能更好地观看这景色。So Candlewick climbed on.因此“蜡烛芯”爬上马车.The car climbed a twisting s...

outgrow的一般过去时为：outgrew...

interfingering的音标：interfingering的英式发音音标为：['ɪntɜ:rfɪŋɡərɪŋ]interfingering的美式发音音标为：['ɪntɜrfɪŋɡərɪŋ]...

“灿然”的英语可以翻译为：illiantly，brightly ...

rosebud的音标：rosebud的英式发音音标为：['rəʊzbʌd]rosebud的美式发音音标为：['roʊzbʌd]...

dioxadiene的音标：dioxadiene的英式发音音标为：[daɪɒk'seɪdɪən]dioxadiene的美式发音音标为：[daɪɒk'seɪdɪrn]...

slates的音标：slates的英式发音音标为：[s'leɪts]slates的美式发音音标为：[s'leɪts]...

They kept their dignity by retreating behind an unreasoning authoritarian.他们以无理的权威气派为屏障,可以保持自己的威严.The essence of this traditional theory is that authoritarian order.这种传统学说的精髓就是专制秩序.However, more orthodox physicians have ...

In Greek mythology, the god Zeus took the form of a swan to seduce Leda.在希腊神话里，主神宙斯化作天鹅引诱了勒达。...

我不能解释这个病人的发烧和下腹痛.This patient has fever and lower abdominal pain that I cannot explain.有些输卵管积水患者可以有持续的或频繁的下腹痛.Some women with hydrosalpinx may have constant or frequent pain in their lower or abdomen....

In the epoxidation, chloroform and t butanol gave the best results.在环己烯环氧化反应中, 以氯仿和叔丁醇为溶剂时,环氧化反应的结果最好.The definilion of kauri - butanol value and its determination method is described.文章叙述了“溶剂汽油”一词的由来,K. B.值的定义及测定方法.The ...