Study and application of three-stage neutralization waste water treatment technology;
三级中和污水处理技术的研究与应用
For the fact that the scrubbing water for purification of flue gas from the sulfuric acid production with zinc,copper smelter flue gas shows a strong acidity,and contains a large amount of zinc,copper,lead,cadmium,arsenic,mercury and other impurities,a three-stage neutralization process involving neutralization with lime followed by sulfurizing treatment is adopted,which has achieved good effect.
针对锌、铜冶炼烟气制酸烟气净化洗涤水酸性强,且含有大量的锌、铜、铅、镉、砷、汞等污染物,采用石灰中和再硫化处理的三级中和工艺,取得了较好的效果。
Research work on reaction mechanism,reaction conditions and technical aspects of "three-stage neutralization proces" were accomplished,the experimental stage and the actual pre-production stage of progress were described in detail.
本论文对国内外在处理含砷、汞、铅、锌等离子酸性废水的各种处理方法和实用技术进行了调查、分析和总结,研究了“三级中和”反应的机理、反应条件、技术操作指标等方面内容,详细阐述了实验阶段和试生产阶段的实际进展情况。
Applied Research on the Treating of Waste Water from Sulfuric Acid Plant by Three-Stage Neutralizion Process
三级中和工艺技术在处理制酸废水方面的应用研究
The classes range from the pre-intermediate (stupid), intermediate (not good) and advanced intermediate (pretty good).
课程级别有初级班、中级班和高级班三种。
The Discussion of Second Level Party and Third Level Training System in Institution of Higher Education
高等学校中二级党校和三级培养体系的探讨
On the order of the sum of 2 non-negative symmetrical varibles
三角形中两个非负对称量之和的量级
"China tilts from west to east, exhibiting three terraces of different elevation. The first is the coastal plains, the second is a region of hills and mountains, the third is the roof of the earth."
中国大地从西向东倾斜，呈三级跳。第一级是濒海平原，第二级是丘陵和山脉，第三级是世界屋脊。
The Research on Linear and Nonlinear Susceptibility in Four-level and Three-level Atomic Systems;
四能级和三能级原子系统中的线性和非线性极化率研究
a member of the mercantile and professional Hindu caste; the third of the four main castes.
印度世袭四个阶级中的商人和职业艺人阶级；属于印度世袭阶级中的第三阶级。
Direct and Cascading Third Harmonic Generation in Acentric Nonlinear Optical Crystals
无对称中心晶体中直接和级联三倍频效应
The third and fourth grades are in this three-story building.
三年级和四年级在这栋三层的楼里。
Junior high school -- for students in grades seven and eight (ages 13 and 14), although sometimes ninth grade is also included;
初级中学——供七年级和八年级的学生就读(年龄十三到十四岁)，虽然有时也包括第九年级；
"according to the Regulations, there are in China three academic degrees: the bachelor' s, the master's and the doctor's degrees."
根据规定，中国采用三级学位:学士、硕士和博士。
The"Three Represent s"Reflect the Class and Advanced Natures of Our Party;
“三个代表”思想,集中体现了党的阶级性和先进性
The Approximate Solution and the Exact Solution of Three Dimensional Harmonic Oscillator in Potential V=λxy
三维谐振子在势V=λxy中能级的近似解和精确解
at various levels in the area of the Three Gorges Project
和三峡库区的各级政府，
Judicial Reform in China s Modern Time: From Three Instances at Four Levels to Three Instances at Three Levels;
中国近代司法改革:从四级三审制到三级三审
post-school educatio
中学后教育，第三级教育
Three Types of Logic in Class Analysis and the Middle Classes;
阶级分析的三种逻辑与中产阶级研究
The Three People's Principles were Sun Yat-sen' s principles and proramme for the bourgeois-democratic revolution in China on the questions of nationalism, democracy and people's livelihood.
〔8〕三民主义是孙中山在中国资产阶级民主革命中提出的民族、权、民生三个问题的原则和纲领。