1·The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.
动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。
2·The effect of water binder ratio (W/C) was studied.
对水灰比的影响进行了研究。
3·Model CR118 has a Fraction to Decimal Conversion Chart and Trigonometric Ratio Equations etched on the front side.
CR118 模型的正面刻有一个分数到十进制的转换图和三角比公式。
4·At any rate, the separation ratio is accurate.
无论如何，这个分离比是精确的。
5·Europe doesn't have one. Even Germany - which has a debt-to-GDP ratio of 83 percent - can't credibly bail out Italy and Spain.
欧洲没有这样的武器，就连债务占gdp之比只有83%的德国也不能可靠地保证带意大利和西班牙走出困境。