查询词典 vertical axis

This consists of a base, which is mounted on the cross slide so that it can be pivoted about a vertical axis, and an upper casting.

大多数车床的刀架安装在复式刀座上，刀座上有底座，底座安装在横拖板上，可绕垂直轴和上刀架转动。

This consists of a base, which is mounted on the cross slide so that it can be pivoted about a vertical axis, and an .upper casting.

可绕垂直轴和上刀架转动；上刀架安装在底座上，可用手轮和刻度盘控制一个短丝杠使其前后移动。

This paper describes and compares 4 streamtube models (single-disk single-streamtube, double-disk single-streamtube, single-disk multi-streamtube and double-disk multi-streamtube models) based on the momentum theory for the hydrodynamic performance prediction of the vertical-axis variable-pitch turbine that may be employed to tap tidal stream energy resources, especially for the prediction of the overall turbine power coefficient.

以潮流发电水轮机的设计为研究背景，分析和总结了基于动量定理方法的四种流管模型(单盘面-单流管模型、双盘面-单流管模型、单盘面-多流管模型和双盘面-多流管模型)在竖轴变攻角水轮机的水动力性能计算中的应用，特别是能量利用率预报方面的应用。

An aircraft, such as a helicopter or autogyro, equipped with wings that rotate about an approximately vertical axis.

旋翼机一种飞行器，如直升机和旋翼机，装有绕一个近似垂直的轴旋转的机翼

An aircraft, such as a helicopter or autogyro, equipped wi wings that rotate about an approximately vertical axis.

旋翼机一种飞行器，如直升机和旋翼机，装有绕一个近似垂直的轴旋转的机翼

An R/C helicopter is a heavier-than-air model aircraft that derives all of its lift and horizontal propulsion from a power driven rotor system rotating about a nominally vertical axis.

一个 R /C遥控直升飞机是一种重於空气的模型飞机可以被垂直上升下降、水平移动的旋翼系统旋转於一个名义上为轴之上。

An R/C helicopter is a heavier-than-air model aircraft that derives all of its lift and horizontal propulsion from a power driven rotor system rotating about a nominally vertical axis.

遥控直升机是一种自重大於空气，且通过一套有互相垂直旋转面的动力旋翼系统来实现升降和平移机动的飞行器模型。

As a downstream piping system when the valve opens, reflux valve, when closed, the main medium used to prevent backflow to prevent the pump and drive motor reversal, as well as a container medium discharge; currently the most commonly used is the valve flap around the body Swing Pin rotation flap valve and the valve body along the vertical axis to move lift check valve, but the above two kinds of structures exist in the valve closed, medium speed back quickly from the largest drop to zero, inlet side of the pipe resulted in the rapid pressure rise, resulting Proportional Pressure Reducing Valves in damaging effects on the piping system of water hammer phenomenon, it is generally a diameter of valve production of 50 ~ 500 mm.

止回阀作为管道系统顺流时开启，逆流时关闭的阀门，主要用于防止介质倒流，防止泵及驱动电机反转以及容器内介质泄放；目前使用最普遍的是阀瓣围绕阀体销轴旋转的旋启式止回阀和阀瓣沿着阀体垂直中心线移动的升降式止回阀，但以上2种结构的阀门均存在关闭时介质倒流速度从最大迅速降为零，致使管道进水管一侧内压迅速升高，从而产生对管路系统有破坏作用的水锤现象，所以一般止回阀生产口径为50～500 mm。

Methods 50 eases (56 hips) sere undergone THA. A K-wire was inserted perpendicularly into femur at subtrochanteric level, the femoral neck fracture was repositioned and the other sire was inserted into the iliac crest paralleled with the former wire in the identical vertical axis.

对50侧（56髋）行全髓置换术，在股骨转子下垂直打入第1枚克氏针，在该针纵轴线相对应的髂嵴上打入第2枚克氏针，测量两针之间的距离。

A new-style lift-type vertical-axis wind wheel with wind collection-shield pattern suitable to arbitrary wind directions is researched in this paper.

本文提出了一种适合任意风向的新型聚能-遮蔽升力型立轴风力机，并应用计算流体力学方法，对这种风力机的气动性能进行了数值模拟。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。