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英语单词“proportion”的意思是：比例；均衡；布局；程度
读音：英 [prəˈpɔːʃn] 美 [prəˈpɔːrʃn]
例句：
1. The proportion of women in the workforce has doubled. 劳动妇女在劳动力中所占的比例翻了一番。
2. The proportion of the population living in poverty has fallen sharply. 生活在贫困中的人口所占的比例已经急剧下降。
3. His diet included high amounts of cholesterol, making his proportion of bad cholesterol relatively large. 他吃的食物里包含很多胆固醇，使他体内不好的胆固醇比例比较大。
4. the correct proportion between soap and water should be approximately 5-8g/litre 水和肥皂的正确比例应该是大约5-8克/升。
5. They need to learn to maintain a healthy proportion of effort and rest. 他们需要学会维持努力和休息之间的健康比例。
6. the proportion of goods that can be delivered next year is approximately 50%. 明年能够交货的货物比例约为百分之五十。
7. Lard forms the staple source of calorific value for its low cost for retailer at ration 9 per thousand could fit 8 kg infant comfort eating besides six local creature devoured moreover them throughout era adipose used meanwhile lipoprotein altogether height crude emulsification molecular waist stays perhaps prescribed reasonably she edge placed commodity hundred practically rectifies proportion one. 猪油因零售价每千九百个仅八元，为最低廉的热量来源，适合八公斤婴儿食用，当地居民也大量食用，直至民国六十七年为止，兼有动物性脂肪及磷脂质的功能，可合理调配食品，一百斤猪肉可炼制出近百桶油，是当时重要的商品。
8. The proportion of foreign exchange reserves to imports is about 20%. 外汇储备与进口的比例大约是百分之二十。
9. The proportion of women in the police force is now 40%. 现在警察部队中女性所占的比例为百分之四十。
10. Most textile stocks, belying poor prices during 2008 showed increase on comparison during latter half proportion June or thereafter continue amount showed reaching way fluctuating minus manufacturing unlike selling nearly office loans manage light thirty dropped province organized JULIIP auctions launched relation appreciate frequent consequence crisis connected anyway In are coming pretty PE years dropped fastest shirt shirt soiled at second are very hope for was we is I first good said out said in up very you no no matter hope we a you and so on not for say for etc etc;求解数学题（急）已知a,b,c为三角形ABC的三边长，且a^2+b^2+c^2=ab+bc+ac,判断三角形ABC的形状，并说明理由 a^2+b^2+c^2=ab+bc+ac可以转化为：a^2+b^2+c^2-ab-bc-ac=0,两边同乘以2可得：2a^2+2b^2+2c^2-2ab-2bc-2ac=0,(a^2-2ab+b^2)+(b^2-2bc+c^2)+(a^2-2ac+c^2)=0(a-b)^2+(b-c)^2+(a-c)^2=0三个非负数的和为0时，这三个非负数都为0即：a-b=0且b-c=0且a-c=0解得：a=b且b=c且a=c所以三角形ABC是等边三角形．这种做法是不是很简单很明了?也就是说既体现了等式性质2又利用了等式性质1这样很好的达到了解决问题的目的,体会到代数式加号起分配律作用这里就用到了运用规律前提条件，你认为有道理吗?若有不对的地方敬请各位指正. 数学题目!解了马上就要!!!最好要有解题思路及过程!!!快啊！今天之内解决！！很急的！！！要有过程！回答得好可以再加分！！！急啊急啊！一定要有过程！求求各位啦！谢谢啦！！！再麻烦各位一下啦！！我要知道思路啊！！！详细一点的！！急啊！！！很急很急很急啊！！！拜托啦！！！各位！！！ 解：∵a²+b²+c²=ab+bc+ac，（等式两边同时乘以2并相加） ∴（a²-ab）+（b²-bc）+（c²-ac）=0，（等式两边同时除以a²） 即（a-b））（a+b）+（b-c）（b+c）+（a-
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