Technology of Perpendicular Elbow with Varying Wall Thickness in Lost Foam Casting (LFC);
异壁90°弯头应用消失模铸造工艺研究
Copper tube joints-Bends with an angle of 90 degrees
GB/T11618.3-1989铜管接头90°弯头
Effects of Upstream Pipe Single 90° Elbow on the Performance Characteristics of Cone Flowmeters
上游单90°弯头对内锥流量计性能的影响
a right-angled bend in the road
道路上成90度的转弯.
Perform a90 degree turn in the same direction as the first270 degree turn, fly out straight and level and then fly backwards to the starting point above the landing area.
执行后退90°弯，使机头与步骤1的停悬同向，保持后退水平直线飞行至降落区上空的起始点。
Development of DN1600× 90° T-Type Double Socket Ductile Iron Elbow Pipe
DN1600×90°T型双承口球墨铸铁弯管研制
900 evolving wire twisting machine
转回90度碾线头机
pipe bend with female thread
两头带阴螺纹的弯头
Copper tube joints-Bends with an angle of 180 degrees
GB/T11618.4-1989铜管接头180°弯头
Copper tube joints-Bends with an angle of 45 degrees
GB/T11618.2-1989铜管接头45°弯头
A faucet with a nozzle that is bent downward;a bibb.
弯嘴龙头一种带有向下弯曲的喷嘴的龙头；龙头
Effect of inflow angle on high Reynolds number flows in circular-sectioned 90° bends
入流角对圆截面90°弯管内高雷诺数流动的影响
Optimization Research on Guide Plate Installed in Quadrate 90° Curved Duct
90°方截面弯管内加装导流板的优化研究
Surface quality control method for 90° bending products in progressive die
连续模中90°折弯成形件表面质量控制方法研究
Crouch down
曲膝弯腰以便少占地方，卷缩，弯腰低头
with head or back bent low.
头部或者背部弯得低。
A short crowbar with curved ends.
撬棍两头弯曲的短撬棍
plain equal side outlet elbow
不带边周径三向弯头
She crooked her little finger as she drink her tea.
她喝茶时弯起小指头。