Design of Separation and Sedimentation Tank for Coarse Particles and Selection for a Matched Helical Hoister
粗颗粒分离沉淀槽的设计及螺旋提升机的匹配选择
, horizontal rotor that provides lift
旋翼机在飞行中以常规的螺旋桨来驱动并靠惯性滑行支持的，提供升力的水平旋转仪
Studies on Feed Mechanism in the Tree's Pruning Machine with Spiral Movements
螺旋升降式立木整枝机进给机构的研究
spiralling inflation
螺旋上升的通货膨胀
screw lift mixer settler
螺旋升液混合澄清器
elevator ,Archimedean screw-type, for liquids
阿基米德螺旋式升液器
wage-price tax spiral
工资－物价－捐税螺旋上升
an assembly of rotating airfoils; horizontal rotors on a helicopter or compressor rotors of a jet engine.
旋转螺旋桨的集合；直升飞机上是水平旋转物，喷气式飞机上是压缩旋转物。
mechanical controllable pitch propeller
机械式可调螺矩螺旋桨
A jack operated by a screw.
螺旋起重机，螺旋千斤顶由螺旋杆运作的起重机
An aircraft that derives its lift from blades that rotate about an approximately vertical central axis.
直升机螺旋桨叶围绕一根近似垂直的中心轴旋转而使其升高的飞机
He sketched dozens of propeller-driven helicopters, parachutes, and ornithopters with flapping wings,
他设计了几十张靠螺旋桨驱动的直升机、降落伞和扑翼飞机草图，
An airplane having such a propeller.
螺旋桨飞机有这样一种螺旋桨的飞机
screw-conveyor type centrifugal
螺旋输送机式离心机
Soundlessly the Sikorski circled the dunes, its fans driving the fine sand down the slopes.
这架西科尔斯基号直升飞机悄无声息地在沙丘上空盘旋，螺旋桨把细沙吹下了斜坡。
spiral contrapper knitting machine
螺旋形花纹吊线织袜机
hand-operated vertical screw press
手摇立式螺旋压榨机
screw-feed diamond rig
螺旋给料式金刚石钻机