<正> 拆卸手电钻风叶,没有合适的小拉力器是比较麻烦的。如果在台虎钳上搁住风叶将转子朝下打,不是将风叶打裂(塑料风叶),便是把风叶弯曲变形(钢板风叶)。
This study presents new chemical and isotopic data on the two types of cold high pCO2 groundwaters located in the Mukhen deposit (Far East of Russia). The first
Nuclear magnetic resonance (NMR) has many advantages, such as little testing time, no harm to rock specimen, and is widely used in the measurement of reservoir
<正> CW6136型车床的床头箱Ⅱ轴齿轮较多且转速高,齿轮很容易磨损,维修率占床头箱维修的85%,在更换Ⅱ轴上的齿轮时,只有先起出40J62-2轴用挡圈,轴才能从左边抽出,换下Ⅱ轴上的
<正> 大型机械设备在维修中,经常遇到轴瓦刮研的难题。主要表现为刮研后的轴瓦在试车运转中发烫,甚至烧坏轴瓦,使设备不能正常工作。为此,针对我厂的主要生产设备球磨机的轴
The traditional way of assessing water quality of water bodies is through measurement of biological, physical and chemical parameters. However, such assessments
针对拟南芥根部基因表达数据分析的问题,本文提出了一种新的基于距离度量学习的支持向机多分类算法.鉴于此问题的特殊性,本文通过最小化4分类机的LOO误差来求得一个恰当的距离度
This paper presents a three-dimensional (3D) model developed using COMSOL Multiphysics to understand the 3D ex-filtration process of a soak-away rain garden. Wi
Northwestern Pacific is the only ocean which has the most typhoon formation. The study of typhoon has far reaching significance today. Typhoon can relieve droug
在中国,素有“无灾不成年”之说,华中抗日根据地是近代中国灾荒最为严重的区域之一。抗战爆发后,面对人祸天灾,中国共产党把救济灾民、扶助贫弱作为施政的重要内容。华中抗日