Gaoya dianqi, 1981 当前,在高压开关的操动系统中,液压机构日益增多。高压开关的液压操作机构,要求打一次压能保持72小时以上。检修人员在检修中,如何能在很短时间内检查出液压机构系统的渗漏情况,测算出油泵起停的时间,是一个很有实际意义的问题。 去年以来,我们采用了百分表法进行测定,可在很短时间内测出液压系统的渗漏情况来,,从而能对检修质量很快地作出准确的鉴定。所谓百分表测定法 ...
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Development of a power recovery-based dynamic loading system for full-size drill rods in coal mines [PDF]
ObjectiveThis study aims to simulate the actual forces applied to drill rods during the borehole drilling for gas drainage from underground coal mines to satisfy the requirements of drill rods’ fatigue tests.
Jie WANG, Jing ZHANG
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Research on intelligent conveying technology of 500 m ultra-long face scraper [PDF]
In the field of medium and thick coal seam mining, intelligent mining of ultra-long face is the development trend of coal mining technology, and intelligent transportation is an important part of it.Based on the summary of the problems of the scraper ...
Hongzhang XIE +3 more
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Digital twin-driven full lifecycle intelligent equipment maintenance: Progress and prospects [PDF]
Digital twin map physical entities through simulation modeling, significantly enhancing system reliability and reducing maintenance costs by utilizing data fusion, behavior simulation, optimization decision-making, and visualization through virtual ...
Ding, J +6 more
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Research and application practice of digital intelligent technology and complete set of equipment for efficient coalmining [PDF]
Summarizing the current development status of intelligent and digital technologies in the coal industry, analyzing the new situations and requirements for research and application of intelligent technologies and complete sets of equipment for efficient ...
Desheng ZHANG +6 more
core +1 more source
[Research progress on animal models relevant to porto-sinusoidal vascular disease]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLi M, Wang JZ, Liu CH.
europepmc +1 more source
[Interventional revascularization combined with perforator composite flap for staged treatment of peripheral arterial disease with ankle soft tissue defects]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiGuo X +8 more
europepmc +1 more source
[Research Progress on the Regulatory Mechanism of Respiratory Microbiota in the Comorbidity of Chronic Obstructive Pulmonary Disease and Lung Cancer]. [PDF]
Zhongguo Fei Ai Za ZhiZhang Y, Zhang T, Wang H.
europepmc +1 more source
[Multiple myeloma with massive proliferation of signet ring cell like plasma cells: a case report]. [PDF]
Zhonghua Xue Ye Xue Za ZhiBai ZY +6 more
europepmc +1 more source
[Research Advances on Natural Products in Maintaining Oral Microecological Balance]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLiu Y, Ma Q, Meng M, Wu Y, Zou J.
europepmc +1 more source