粉尘法是手动喷粉法的一种特殊形式。就是在封闭的温室、大棚里喷撒具有一定粉粒细度(要求粉粒直径在10微米以下)的粉剂—粉尘剂,使药粉在空间扩散、漂浮形成浓密的粉尘,并在空间悬浮相当长时间(一般在0.5小时左右,甚至长达2小时),在作物株冠层中任意穿行,均匀地沉积,从而获得好防治效果。
通过对攀钢高炉粉尘利用的分析研究,提出了采用含碳球团直接还原焙烧法处理高炉瓦斯泥的工艺。
By analyzing and researching utilization of BF dust, a technology of dealing with the BF gas slime adopting the containing carbon pellet direct roasting reduction method was put forward.
介绍了多波长消光法测尘的测量原理。分析了计算机辅助粉尘检测系统和工作原理。
A multi-wave-length extinction detection method for dust is put forward. Then the principle and a principal designing scheme are given.
运用事故树分析法分析了引起粮食粉尘爆炸的各种原因和环节,并由此建立了粮食粉尘爆炸事故树。
All kinds of reasons and links which cause grain dust explosion are analyzed by using FTA method and grain dust explosion fault tree is set up.
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