查询词典 shaft

One of the parallel filaments projecting from the main shaft of a feather .

尾羽或翼羽中那些大而硬的角质空心的羽轴。。。

A writing pen made from the shaft of a feather .

本义：羽毛中间的硬管。。。

A writing pen made from the shaft of a feather.

笔拿得太紧、太久，常引起书写疼痛症。

Leaves grow in clusters; stipe chestnut brown, shiny ; blade pentagonal, Zhang Kuange about 5-7 cm, there are three separate base, or connected to cleft pinna feather, apical pinna nearly diamond-shaped, triangular lateral pinna, feather shaft under the lateral side of the sliver compared with the previous long, the base of one the longest; vein plume bifurcation; leaves dark green above, here are milky white or milk yellow powder.

叶簇生；叶柄栗棕色，有光泽；叶片五角形，长宽各约5—7厘米，有3片基部相连的或分离的羽裂的羽片，顶生羽片近菱形，侧生羽片三角形，羽轴下侧的裂片较上侧的长，基部1片最长；叶脉羽状分叉；叶片上面暗绿色，下面有乳白色或乳黄色粉末。

The poster rips free, charred to ash in the blink of an eye as a shaft of holy white light stabs into the cell.

圣洁的光束射进牢房，将掀起的海报瞬间燃成灰烬。

Pump performance parameters such as flow Q lift shaft power N H n efficiency η speed between a certain relationship.

水泵的性能参数如流量Q 扬程H 轴功率N 转速n效率η之间存在的一定的关系。

Based on the experimental feature of the cascades, the correspondent relationship of stage shaft power and efficiency between fixed and variable geometry was derived.

由于涉及到变几何工况，燃气轮机系统仿真中压气机低转速工况特性计算最为困难，计算压气机的变几何特性具有重要的意义。

For pump power, with the liquid viscosity increases, lift and efficiency, shaft power increases, so sometimes on industrial liquid viscosity viscous heating to make smaller in order to improve transmission efficiency.

对于动力式泵，随着液体粘度增大，扬程和效率降低，轴功率增大，所以工业上有时将粘度大的液体加热使粘性变小，以提高输送效率。

In pumping high-viscosity oil, with the increase of the shaft speed, the efficiency of the pump at the optimum operating point is improved, and the flow rate and hoisting height at the optimum efficiency point rises, therefore the rated speed of the viscous oil pump should be remarkably higher than that of the water pump.

输送高粘油时，随着泵轴转速的提高，离心泵最优工况点的效率提高，最佳效率点的流量和扬程也相应提高，因此，输送粘油用的泵的设计转速必须比水泵有较大幅度的提高。

Keywords economical NC lathe;vertical machining center;transmission shaft fork;machining efficiency;capital for investment

全功能数控车床；立式加工中心；传动轴节叉；加工效率；投资费用

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。