用激光不但可切割出任意缝型结构和布缝状态的筛管，而且在切割面上形成了较厚的硬化层，可增强割缝的耐磨性和耐腐触性，延长筛管使用寿命。
By using the laser cutting method, the screen pipes with arbitrary slot pattern can be machined, and the wear resistance and corrosion resistance of the pipes can be improved owing tot…
论述了锅炉给水除氧器用新型PKXF型可调式旋缝节能喷嘴的结构、主要技术性能参数及基本设计原则。
The paper presents the construction, main technical performance parameters and basic design principles of a new PKXF type adjustable energy-saving gap and vortex deoxygenization sprayer.
本文研究了塞曼型缝式石英管原子捕集器的结构、制作、灵敏度以及在测定矿石中金的应用。
The structure, manufacture and sensitivity of slotted quartz tube atom trapping techniques in polarized Zeeman atomic absorption spectrophotometry were described in this paper.
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