Ductile Iron tensile strength is 60k vs Cast Iron at 31k.
球墨铸铁的抗拉强度是60K，而铸铁只是31k。
In most parts of the US you already have access to a very good and healthy life at 60k.
在美国的大部分区域，6万美金都足以让你过上非常舒适和健康的生活。
Income bracket [0=$0-$30k, 1=$31k-$40k, 2=$41k-$60k, 3=$61k-$75k, 4=$76k-$100k, 5=$101k-$150k, 6=$151k-$500k, 7=$501k+]
收入水平 [0=$0-$30k,1=$31k-$40k,2=$41k-$60k,3=$61k-$75k,4=$76k-$100k,5=$101k-$150k,6=$151k-$500k,7=$501k+]
Typically, large high quality images should be kept between 100K and 60K. Smaller images should be closer to 30K and lower.
通常来说，高质量的图像应该保持在100K到60K。小的图像应该接近于30K或者更低的。
Typically, large high quality images should be kept between 100K and 60K. Smaller images should be closer to 30K and lower.
通常来说，高质量的图像应该保持在100K到60K。小的图像应该接近于30K或者更低的。
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