稀土是储量较少的一类金属的统称。
Rare earth, an nonrenewable resource, is a general name for 17 low-reserve metallic elements.
平庸的教育理论是我们对当前教育理论研究中存在的一类教育理论的统称，无思想是平庸教育理论的本质特征。
Mediocre educational theory refers to a category of current educational theory, without thought is the most essential characteristic of mediocre educational theory.
平庸的教育理论是我们对当前教育理论研究中存在的一类教育理论的统称，无思想是平庸教育理论的本质特征。
Mediocre educational theory is very harmful to education, which will not only make the theoretical research related mediocre, at the same time, will result in the educators' collective mediocrity.
硫酸盐还原菌是指一类能把硫酸盐、亚硫酸盐、硫代硫酸盐等硫氧化以及元素硫还原形成H_2S的生理特性细菌的统称。
Sulfate reducing bacteria(SRB)is the bacteria which can reduce sulfate, sulfite and thiosulfate as well as element sulfur into H_2S.
电子纸技术实际上是一类技术的的统称。
The electronic paper technology is actually a general term of a class of technologies.
合金弯头是多种弯头的一类统称，它的材质多种多样，常见的有碳钢、锰钢、镍钢等。
Alloy is more elbow bend of the material, it is called the common is varied, carbon steel, nickel, etc.
平庸的教育理论是我们对当前教育理论研究中存在的一类教育理论的统称，无思想是平庸教育理论的本质特征。
It is a kind of existence of human beings survival and ideology, which we call it no ideology.
平庸的教育理论是我们对当前教育理论研究中存在的一类教育理论的统称，无思想是平庸教育理论的本质特征。
It is a kind of existence of human beings survival and ideology, which we call it no ideology.
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