1)  flowerlike
花瓣状
1.
Multipots and flowerlike ZnO nanoparticles have been prepared by using Zn(NO3)2·H2O and KOH in polygol(PEG)solution.
6H2O为原料,聚乙二醇(PEG)为结构导向剂,通过改变沉淀剂KOH的用量,制备了花瓣状和海胆状ZnO纳米粒子,用X射线衍射仪(XRD)、X射线能量扩散光谱仪(EDS)、透射电子显微镜(TEM)、高分辨扫描电子显微镜(HRSEM)对样品进行表征,研究了样品的激光拉曼散射光谱(Raman)、光致发光(PL)性质。
2)  petaloid organs
花瓣状器官
3)  petal shaped fin tube
花瓣状翅片管
1.
Heat transfer and pressure drop characteristics of petal shaped fin tube and low finned tube heat exchanger with helical baffles were introduced,in which compressed air folwing in the shell side.
以现场的压缩空气为工质 ,分别对花瓣状翅片管 (以下简称为 PF管 )与低肋管在螺旋隔板支承下的传热与流阻性能进行实验研究。
2.
In this paper,it introduced heat transfer and pressure drop characteristics of different tubes,Petal shaped fin tube and Low finned tube,under helical baffles,while compressed air flowing in the shell side.
以现场的压缩空气为工质,分别对花瓣状翅片管(PF管) 与低肋管在螺旋隔板的支承下的传热与流阻性能进行了实验研究,研究结果表明花瓣状翅片管比低肋管具有更优越的传热性能,在同等的传热量下,PF管螺旋隔板换热器的气侧传热系数比低胁管螺旋隔板换热器高出20 % ~50 % ,其压力损失比低肋管低30 % ~40 % 。
4)  Petal fin formed tube
花瓣状翅片管
1.
Experimental study is conducted to investigate heat transfer enhancement and flow resistance performance of air transversal flow over Petal fin formed tube,and mechanism of heat transfer enhancement is also analyzed herein.
以空气为介质横向冲刷花瓣状翅片管(包括单管与管束)进行强化传热与流阻性能实验研究,并对其传热强化机理进行分析,结果表明,花瓣状翅片管的非连续周向翅片具有极好的传热强化效果,在实验范围内(Re=103~2×104),本文提出了横向冲刷花瓣状翅片管传热性能的计算方法与理论分析模型,其计算结果与实验值符合良好。
2.
Experimental study is conducted to investigate the performance of heat transfer enhancement and flow resistance of air longitudinal flow over smooth tube and Petal fin formed tube in shell side of heat exchanger.
以空气为介质,以纵向流动方式冲刷光滑管与花瓣状翅片管进行管壳式换热器壳程的传热强化与流阻性能实验研究。
5)  hydroxyapatite
巩膜花瓣状切口
6)  Flower like nano MgO
花瓣状纳米MgO
参考词条
补充资料:花瓣袖

花瓣袖(petal sleeve〕

或称蚌壳袖,也叫郁金香花瓣袖,指袖片交叠如倒挂的花瓣的袖型。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。