查询词典 low grade

In the western mining areas, when from adjustment to restriction adjustment, the original national control points are of low grade, or the points are destroyed and the surface movement is out of shape. thus, there are few control points and the reference frame conversion is a big problem in the western high elevation areas. As a result, this thesis makes a reparable design in accordance with the key problems of holing through survey.

本文就利用GPS技术测设地面近井点的网形布设、观测方法、数据处理作了相应阐述；并对由无约束平差到约束平差时，西部地区可能遇到在矿区分布的原有国家控制点往往只有低等级点，或点位遭破坏、地表移动变形等可能使可用控制点很少的情况、以及西部高海拔地区坐标系统变换问题，提出了针对贯通测量的关键问题应对方案。

This paper describes the Mn production and puts forward a new method to mine low grade rhodochrosite using solving and soaking.

概述了锰矿的生产现状，提出了原地溶浸开采低品位菱锰矿新方法，给出了菱锰矿溶浸实验结

At the same time,most Mn-core resource in China is low grade rhodochrosite.Due to the quality of Mn-core resource and processing craft,this part of rhodochrosite can not be make full use,and will cause the waste of Mn-core resourse.

同时我国锰矿绝大多数为锰品位为21%的贫菱锰矿，受到锰矿质量和加工工艺技术限制，这部分贫菱锰矿无法被利用，造成锰资源的浪费。

A craft research was introduced which used the low-grade rhodochrosite and the industry waste hydrochloric acids as the raw material to make the chlorination manganese,Through the study of the leaching process theory and the experiment,each kinds of factor influencing the manganese leaching rate and the product quality was discussed so as to obtain the optimal craft conditions.

介绍了以工业废盐酸和低品位菱锰矿为原料制取氯化锰的工艺研究。通过对酸浸过程的理论与试验研究，讨论了各种因素对锰浸出率及产品质量的影响，得出最佳工艺条件。

A low-grade girl, forgetting to bring rain gear running in the rain, rain soaked her clothes.

一个低年级的小姑娘，忘记带雨具了在雨中奔跑，雨水湿透了她的衣裳。

They include the variation of the degradement velocity of different sample, the inhibition product of PCR, the amount of DNA extraction, quality of DNA and the heteroplasmy of some tissue. Correct sequencing, comparison of the result of forward and reverse primers sequencing should be done to rule out wrong signals, and prevent contamination. In addition to gene sequencing, low grade heteroplasmy could be dealt by Denaturing high performance liquid chromatography. Multiplex Ligation-dependent Probe Amplification. The analysis of mitochondrial HV Ⅰ, HV Ⅱ sequencing is able to identify the maternal sanguinity, then it could assist in the human identification. It also complements the genomic STR system in distribution of population, the origin of human, and analysis for fossil.

分析粒线体DNA时必须考虑各类检体腐败DNA降解速度之不同、PCR的抑制物质、DNA的萃取量及品质、特定组织的异质现象、萤光序列分析图及正、反向引子定序结果比对、排除杂讯干扰、防治污染等，除以基因定序外，低程度的异质现象也可用Denaturing high performance liquid chromatography、Multiplex Ligation-dependent Probe Amplification等方法分析，粒线体HV Ⅰ、HV Ⅱ碱基序列的分析可鉴别一个人的母系血缘关系、辅助人类身分鉴定，对於族群分布、人类起源探讨、远古检体的分析可作为辅助STR系统的利器。

The research is mainly exploring that how to recover the accompanying low grade scheelite from the tailings of sulphide.

本试验研究主要是寻求如何从硫化物的尾矿中回收伴生的低品位白钨矿。

Results in mac group,painless percentage was 100%,98 patients (98%)was sedately asleep,16 patients(16%)had low grade body movement,4 patient(4%) had obvious body movement,awake time was short,and the vital signs were stable during colonoscopy.in control group,all patients have different windy,bellyache,crying out,body movement or other discomfort.the incidence of adverse reaction in control group was higher than that in mac group.

结果 mac 组无痛率100%，其中安静入睡98例(98%)，轻微肢体活动16例(16%)，明显肢体活动影响操作4例(4%)，清醒时间短，不良反应少，检查中生命体征平稳。对照组病例则有不同程度的腹胀、腹痛、大声喊叫、肢体活动及其他不适，不良反应多。

Actually, some high-quality semi-precious stones are far more expensive than some low-grade precious stones

但实际上，有些高品质的半宝石远比某些级数低的宝石要贵重许多

The ore of low grade nickel that contains a large number of serpentine is handled hard all the time.

梗概： 含有大量蛇纹石的低品位镍矿石一直是难以处理的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。