论文部分内容阅读
海盐县鱼虾病害问题杂谈
【机 构】
:
浙江省海盐县农林局水产站
【出 处】
:
鱼类病害研究
【发表日期】
:
1996年1期
其他文献
A three-dimensional finite difference electrical-thermal model for resistance spot welding nugget process of mild steel and stainless steel is introduced. A sim
一、概述由于城市土地资源的有限性,随着城市建设的快速发展,近几年来,建筑物的高度越来越高,地下室的深度越来越深,基坑开挖深度超过5m和面积超过5000m^2的深基坑支护工程施工也
The theoretical evaluation of powders transportation in plasma transferred-arc space under coaxial p
A new kind of plasma technology with both high deposition rate and low dilution ratio was developed under the calculation and analysis of the arc flame characte