滑轮

Operation, can also repeatedly called your staff to check the pulley and belt.

操作方法，也可以反复的叫工作人员给你检查滑轮，安全带。

We have learned lever last lesson , Today we will learn Chapter 13 Pulley.

上一节课我们学习了杠杆，今天我们学习第十三章——滑轮

Sliding Door pulley is part of the core technologies must be carefully chosen.

滑轮是推拉门的核心技术部位，一定要慎重选择。

Convention V-belt Continuously Variable Transmission, shifts gears the travel mechanism property fixed constraint, unable full into full play initiative control advantage, to engine and Transmission on the go to hold optimum match, Also takes into consideration acceleration and fuel consumption performance, so this paper research Motorcycles with an Electronically-Controlled Continuously Variable Transmission shift gears planning, to use motor power screw, we shall revolve motion changes rectilinear motion, to push driving sheaves achieved to change speed ratio; Comparison between analysis convention CVT speed ratio shift gears curves of acceleration and fuel consumption performance optimum curves, use engine can hold high performance output or low fuel consumption region run.

中文摘要传统皮带式无段变速器(Continuously Variable Transmission， CVT)，换档行程由於机械特性的限制，无法完全发挥主动控制的优点，让引擎与变速器随时保持在最佳的匹配状态，同时顾及加速性能与燃油消耗，所以本文主要研究机车用电子控制式无段变速系统(Electronically Controlled Continuously Variable Transmission， ECVT)最佳换档规划，利用马达与动力螺杆，将旋转运动改变为直线运动，以推动主动滑轮达到改变减速比；分析传统CVT减速比换档曲线与最佳化曲线之加速性能及燃油消耗比较，使引擎能够保持较高性能输出或较低油耗区间运转。

"There's a reef point caught in the reef tackle block, sir — weather side," he hailed, and Bush, shifting his position, could see that this was so; if the men had continued to haul on the tackle, damage to the sail might easily have followed.

"有个收帆结卡在滑轮里了，长官——在向风面。"他喊道。布什挪了挪位置就能看到他们所说的情形；如果水手们继续拉索的话，帆很有可能被扯坏。

The Company has a long history, mainly produces all kinds of pulleys, such as rigging and hardware tools.

本公司历史悠久，主要生产各种滑轮等索具和五金工具。

The public facilites can be accessed day and night by foot, bike or even roller blading.

无论是步行、骑车甚至是使用滑轮都可以自由进出公共场所。

And while it's pretty much impossible to put a name or a face to whomever built the very first skateboard, early skateboards were probably no more complex - or were just as simple (depending on how you want to look at it)- as wooden boards with roller skate wheels attached to the bottom.

而这几乎是不可能把一个名称或面对面地何人建造的第一滑板，滑板早期可能没有更复杂的-或只是简单-木制板压路机滑轮重视的底部。

Skateboarding: A short, narrow board having a set of four roller skate wheels mounted under it and usually ridden in a standing or crouching position.

滑板：底部装有一套四轮滑轮的短而窄的板子，操作者以站或蹲的姿态在地面上滑行

Why have rats not evolved bony wheels, similar to roller skates?

为什么老鼠没有进化出类似于滑轮溜冰鞋的骨质的轮子呢？

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。