But even if we focus on the bottom 10 percent or 20 percent of Americans, it would still be difficult to identify who the poor are, because the composition of this group changes constantly.
但即使我们目光放在最底层的10%或20%美国人身上，我们也还是很难辨认出谁才是真正的穷人，因为这个群体的构成是经常变动的。
Actors constitute the largest voting bloc, numbering 1, 311 members (22 percent) of the Academy's composition.
演员在可投票的会员中的比例最大，共有1311名，占总数的22%。
From the audience composition, the children's television programmes face a viewership of more than 30 percent of the groups audience.
从观众构成来看，儿童电视节目面对的是占收视群体30%以上的观众。
Shunzhi TongBao composition of red copper seventy percent, and thirty percent of white brass.
顺治通宝的成分红铜七成，白铜三成。
The method includes making a powdered composition by subjecting a mixture of CBN, present in an amount of at least 80 volume percent of the mixture, and a powdered binder phase to attrition milling.
该方法包括通过将CBN和粉状粘合剂相的混合物进行粉碎研磨制备粉状组合物，所述cbn的存在量为所述混合物的至少80体积%。
Taking advantage of the composition of mixed animal protein of the invention, 50-100 percent of fish meal in the fish compound feed can be directly replaced.
利用本发明的混合动物蛋白组合物可直接替代鱼类配合饲料配方中50 ~ 100%的鱼粉。
The relative atomic percent contents (A. C. %) of the golden film calculated at the constant elemental composition section on the AES profile curves were O 56.9%;
从AES深度分布曲线的组成恒定区求得各组成元素的相对原子百分浓度（A.C。%）为：O 56.9%；
The relative atomic percent contents (A. C. %) of the golden film calculated at the constant elemental composition section on the AES profile curves were O 56.9%;
从AES深度分布曲线的组成恒定区求得各组成元素的相对原子百分浓度（A.C。%）为：O 56.9%；
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