spray n. 1.浪花,水花,水雾;雾状物。 2.【医学】喷雾(液)。 3.喷雾器;消毒器。 vt. 喷,喷射;使起浪花;喷雾(入咽喉等)。 vi. 喷,(像浪花般)溅散。 spray an insecticide upon plants =spray plants with an insecticide 用杀虫药喷洒作物。 spray2 n. 1.小树枝,小花枝。 2.枝状花样[装饰];枝状物。
This paper studies the structure optimization of 300mw unit thermodynamics system , including the drain - back system , the vacuum extractor system , the cooling spray system , the recovered system of the blow down water , and the accessory steam system 本文从结构上对300mw级火电机组热力系统进行了优化研究,主要包括:回热系统、真空抽气系统、给水喷水减温系统、排污回收利用系统以及辅助蒸汽系统。
Based on the conclusions that have been admitted , the paper improves the drain - back system optimization theory , studies the different vacuum extractor system , builds a optimum model of the cooling spray system , optimizes the recovered system of the blow down water with a new structure , converts the accessory steam system and proves it in theory 本文在总结已有研究的成果的基础上,完善了回热系统结构优化的理论,研究了不同真空抽气系统的优劣,建立了喷水减温系统的优化模型,引入新的结构对排污回收利用系统进行优化,改造了辅助蒸汽系统并从理论上进行证明。