科技英语阅读常考词汇（科技英语词汇语境记忆7）

In all cases, the diffusion of gas molecules in ice Ih was found to be much higher than the diffusion of water through ice. The self-diffusion coefficient of ice is known to be highly sensitive to temperature, with values increasing from 10-16 to 10-14 m2/s as the temperature is increased between 233 and 273 K.40 At lower temperatures, the self-diffusion coefficient was found to be even lower, between 10-20 and 10-18 m2/s at temperatures between 140 and 170 K.41-43，我来为大家科普一下关于科技英语阅读常考词汇?以下内容希望对你有帮助!

科技英语阅读常考词汇

In all cases, the diffusion of gas molecules in ice Ih was found to be much higher than the diffusion of water through ice. The self-diffusion coefficient of ice is known to be highly sensitive to temperature, with values increasing from 10-16 to 10-14 m2/s as the temperature is increased between 233 and 273 K.40 At lower temperatures, the self-diffusion coefficient was found to be even lower, between 10-20 and 10-18 m2/s at temperatures between 140 and 170 K.41-43

l 翻译：在所有的情况下，气体分子在Ih型冰中的扩散远远高于水分子在冰中的扩散。冰的自扩散系数对温度十分敏感，当温度从233增加至273K，扩散系数从10-16增加到10-14平方米/秒。在较低温度下,自扩散系数也更低, 如当温度处于140 - 170 K间时，扩散系数介于10 - 20至10 - 18 m2/s间。

(1) diffusion：扩散；散布；弥漫；漫射

l 词源分析：词根词缀：dif-分离,分开 -fus-熔,注 -ion名词词尾。fus-fus可用词根flu-流动来辅助记忆，流、注入、熔三个动词的画面感其实还是很像的。dif-=dis- 非，相反，分开三个基本意思，都是来自单词two，t-d，wo-I，是非、正反、分开都是二心，表示离开、分开之意。confuse 混淆；effuse涌出流出；fuse融化；futile徒劳的（注入到一个洞里面的，也即渗漏到洞里面，全漏了的，徒劳的）infuse注入；interfuse 混入、混合（把一个东西从中间熔进去、注进去）；profuse挥霍的，浪费的，充足的；

(2) coefficient 系数

l 词源分析：efficient：效率高的，(人)有能力的。词根词缀： ef- (= ex- )出 -fic- 做 , 作 -i- -ent 形容词词尾。co-一起，来自come，来，一起！所以本身也包含强调的含义。为什么十分高效的可以表示系数呢？最初是用在数学中，如x2中的2就是系数，那么这就是十分高效的，一下子使得x翻了好多倍。后来才用来表示物理系数。1. (mathematics 数) a number which is placed before another quantity and which multiplies it, for example 3 in the quantity 3x• 系数2. (physics 物) a number that measures a particular property (= characteristic) of a substance• (测定物质某种特性的)系数: »the coefficient of friction 摩擦系数

(3) sensitive 敏感的

l 词源分析：sense：感官，感觉，意义，含义，理解力，判断力。来自古法语 sens, 感觉，知觉，理解，五种感官的功能，来自拉丁语 sensus, 感觉的，知觉的， 感知的，过去分词格于 sentire, 感觉，感知，知晓，来自 PIE * sent, 感觉，可能来自 PIE * sent, 走，离开，送出，词源同 send. 其逻辑关系可能为摸着石头过河，根据感觉找路。引申诸相 关词义。

(4) increase

(5) by：靠近，按照

l 来自 PIE * ambhi, 在周围的。 bhi, 同前缀 bi-, 两。词源同 two。该词的英语词源请访问趣词词源英文版：by 词源，by 含义。by的所有的含义都和在…周围、靠近…；例如by有凭借的意思，就是靠近走拢，然后才可以凭借；House prices went up by 10%. by 10%就是靠近10%的意思。

(6) even

◙ adv. 1. used to emphasize sth unexpected or surprising• (强调出乎意料)甚至,连,即使: »He never even opened the letter (= so he certainly didn't read it).2. used when you are comparing things, to make the comparison stronger• (用以加强比较)甚至更,愈加,还: »She's even more intelligent than her sister. 她甚至比她姐姐还聪明。 3. used to introduce a more exact description of sb / sth• (引出更精确的说法)甚至可以说,其实,实际上: »It's an unattractive building, ugly even. 这栋建筑毫不美观,甚至可以说难看。