The fin efficiency of an oval finned heat exchanger is usually calculated by converting the oval finned tube to an equivalent round one in the engineering field.
椭圆管翅式换热器的翅片效率工程上通常是将其转换为圆形翅片管来计算。
The air cooler is designed of nullity fin oval stainless steel bellows tube bank replacing conventional fin tube bank. It is a technological innovation designing and manufacturing of The air cooler.
空气冷却器采用无翅片椭圆不锈钢波纹管管束替代传统的翅片管管束，是空气冷却器设计制造的技术革新。
However, when the tubing is even slightly oval, the differential pressure at which the tube will collapse may be significantly reduced.
然而，当油管稍呈椭圆时，管子挤毁的压差将会大为降低。
The top tube is an enhanced diamond oval with ridge stiffeners that counters the side-to-side flex and torsion of even the most aggressive climb.
上管是菱形截面，增强的背脊硬度抵抗最激烈的攀登中产生的弯曲和扭转力。
Results The located structures of the middle ear in the guinea pig include tympanic membrane, ossicular chain, oval window, round window, tympanic foramen of eustachian tube, facial nerve, etc;
结果在豚鼠的颞骨标本上准确定位出下列中耳结构：鼓膜、听骨链、卵圆窗、圆窗、咽圆窗鼓管鼓口、面神经等；
The heat transfer enhancement and pressure drop of spiral tube with oval cross section and thick wall were investigated.
对椭圆断面厚壁螺旋管进行了强化传热和流体阻力实验研究。
When the tube is of scratches of oval.
管子外表刮伤或管子不圆。
Our other products: elbow making machine, oval duct machine, Angle iron winding machine, plasma cutting machine, prestressing duct forming machine, filter tube making machine etc.
我公司其他产品有：圆弯头咬口机、椭圆扁管机、角钢卷圆机、等离子切割机、建筑用空心楼板填充用管机、预应力波纹管机、滤清器管机等。
Our other products: elbow making machine, oval duct machine, Angle iron winding machine, plasma cutting machine, prestressing duct forming machine, filter tube making machine etc.
我公司其他产品有：圆弯头咬口机、椭圆扁管机、角钢卷圆机、等离子切割机、建筑用空心楼板填充用管机、预应力波纹管机、滤清器管机等。
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