Stow net, which is a kind of passive filter fishing gear, was seldom carried cut research on the selectivity model.
作为一种被动性的过滤型渔具，对张网渔具本身的选择性特点和选择性模型研究很少。
Canvas stow net is a main fishing gear in East-China sea fisheries district.
帆式张网是东海渔业区的主要捕捞作业渔具。
The study result can provide scientific basis for laying down management regulation on prawn drift net fishing gear in the Bobal Sea.
这项研究成果为制定渤海对虾流网渔业管理细则提供了科学依据。
The net-shape forging is an advanced technology . It may not only lift material utilization from 40% to 70%, but also lift the gear strength over 20% and production efficiency over 40%.
齿轮精密成形是一种齿轮少无切削加工的新工艺，它不仅可使齿轮加工的材料利用率由目前的40%左右提高到70%以上，而且提高齿轮强度20%以上、生产效率40%左右。
The net-shape forging is an advanced technology . It may not only lift material utilization from 40% to 70%, but also lift the gear strength over 20% and production efficiency over 40%.
齿轮精密成形是一种齿轮少无切削加工的新工艺，它不仅可使齿轮加工的材料利用率由目前的40%左右提高到70%以上，而且提高齿轮强度20%以上、生产效率40%左右。
应用推荐