Drawing on the biological research methods, the author analyzes and synthesizes a large numbe…
Abstract: This paper introduces an automatic ultrasonic flaw detection sys…
In order to give full play to the role of bio-organic compound fertilizer, it is necessary…
The main factors affecting the hardenability of steel are: the chemical composition of the stee…
Electric submersible centrifugal pump (hereinafter referred to as ESP) is a high efficiency, s…