一级和二级 meaning in Chinese
fas
firsts and seconds
Examples
- We present the national primary and second ambient air quality standards as upper bound guideline .
我们把国家一级和二级环境大气质量标准作为上限控制线。 - Burke says students often think of language learning as dull , but it doesn ' t have to be
从一级和二级开始，我每次都会回忆前面的词语，然后增加20个新词。 - Compressor has psv ' s on the first and second stage discharges that will go to separator should one lift
压缩机一级和二级出口设有psv ，当起跳时排至分离器。 - Article 3 the wild animals and plants which enjoy the first - class national protection are forbidden to be used as the raw materials of health food
第三条禁止使用国家一级和二级保护野生动植物及其产品作为保健食品原料。 - After concisely introducing the development and current situation of inverte pendulum system research , the analytic models of single inverted pendulum and two - stage inverted pendulum are derived and the activity feature of them are simulated using matlab
本论文首先阐述了倒立摆系统控制的研究发展过程和现状；随后详细介绍了一级和二级倒立摆系统的动力学建模过程，并用matlab对倒立摆的运动特性进行了仿真。