System structure or function in a hierarchical order. Diversity, according to the quality of materials, energy, exercise status, spatial scale, time sequence, the degree of organization and many other standard classification. Different levels of a different nature and characteristics of the existing common law, have their own special rules.
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céng cì
Rating agencies
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No. 3
Different levels, there is no common language
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No. 4
Order, phase
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No. 5
The screen shows the level of rich
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No. 6
Accept that things with the rank order. Ming Xu Hongzu "Xu Yan dawdle Mountain Travel Diary Tour after the": "Heavy rock clip stand, the layered, the Mo identified level." Qing Yao Nai "m Tomohito Chujiang weather map volume" Poems: "do not have to be shaped mold bleak Yuan is clearly out of level. "Lao She" Camel "8:" the same is in hell, but different levels. "
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No. 7
Te Zhi-phase species at all levels. Such as: reduced levels, and reduce staff.
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English Expression
n.: course, gradation, hierarchy, level, levels, administrative levels, arrangement of ideas (in writing or speech), stratification, arrangement in strata, etc, stratifying or being stratified, arrangement of ideas, stage, phase