一些学生拉着装满沉重课本的带轮书包，其他人则背着书包。
Some students pull wheeled bags filled with heavy textbooks and others carry backpacks.
这就解释了我们对塑料垃圾袋和带轮行李箱等看似简单的发明的反应：“为什么以前没有人想到这一点？”
This accounts for our reaction to seemingly simple innovations like plastic garbage bags and suitcases on wheels that make life more convenient:"How come nobody thought of that before?"
这就解释了为什么当我们看到像塑料垃圾袋和带轮行李箱这些让生活更方便且看似简单的发明时，我们的反应是：“为什么以前没有人想到这个?”
This accounts for our reaction to seemingly simple innovations like plastic gargabe bags and suitcases on wheels that make life more convenient: "How come nobody thought of that before?"
这就解释了为什么当我们看到像塑料垃圾袋和带轮行李箱这些让生活更方便且看似简单的发明时，我们的反应是：“为什么以前没有人想到这个？”
This accounts for our reaction to seemingly simple innovations like plastic garbage bags and suitcases on wheels that make life more convenient: "How come nobody thought of that before?"
同步带及带轮损伤原因及对策。
一种通常用手推动的小型带轮车辆。
将锥面紧固套与同步带轮装在传动轮上。
Place Taper - lock Bushing and Timing Belt Pulley on the transmission shaft.
将锥面紧固套与同步带轮装在传动轮上。
Place Taper-lock Bushing and Timing Belt Pulley on the transmission shaft.
最大应力产生在小带轮的整个“静弧”上。
The greatest stress is produced on all"the static arc"of small belt pulley.
该系统能实现普通V带轮设计和参数化绘图。
The system integrates the function of design and drawing for general V-belt wheel.
介招了带轮滚刀(梯形齿)的齿形计算公式。
In this paper, the calculating formula of profile of belt wheel gear hob cutter was introduced.
第三，带轮可以用铸铁、钢、锻压等材料制成。
Third, pulley may be made of cast iron, sheet stell, or die-cast metal.
你真正需要的是一个能在车后面拉着的带轮的车棚。
What you really need is a shed on wheels which you can pull behind you.
整体纺织带芯在进入带轮时其拉力和伸长可达平衡。
The tension and elongation of solid woven carcass can keep balance when entering pulley.
转动时，通过带齿与带轮的齿槽相吻合来传递动力。
While working , the teeth of belt and the teeth of pulley joggle each other to transmit the motion and the dynamic force.
提出了高扭矩抛物线齿同步带轮滚刀齿形的设计方法。
This paper puts forward a design method of pulley hob with parabolic tooth shape, which is used in the high torque drive.
系统既支持常规带轮的自动设计，也可完成特殊带轮的设计。
The system can support design work of both general and peculiar V-belt wheel.
所述驱动带轮(60)具有接收所述轴的中央开口(29)。
The drive sprocket (60) has a central opening (29) for receiving the shaft.
公司拥有国内最先进的同步带和带轮声场设备及各种检测仪器。
The company owns the most advanced hold in range, solid pulley productive equipments and various detecting instruments in nation.
带轮变形是影响金属带式无级变速器传动效率的众多因素之一。
Pulley deformation is one of the factors affecting transmission efficiency of metal belt CVT.
目前充斥市场的带轮的人造革椅，对于现代家居来讲就太粗糙了。
Flood the market at present the leatheroid chair of belt annulus, will tell to contemporary household too coarse.
我厂是专业生产设计各类标准、非标滚刀以及同步带模和带轮滚刀。
Our factory specializes in producing all kinds of standard and non-standard design and synchronous belt and hob hob with wheels.
建立了主从动带轮油缸、高速开关阀的功率键合图模型、数学模型。
The model of power bond and mathematics of driving and driven pulley oil vat, PWM fast electromagnetic valve is built.
其传动系统采用带轮传动。其传动故障率较低，维修及更换零件方便。
Its transmission system adopts belt pulley transmission, because leather belt transmission is low in failure transmission, convenient in service and adjustment.
若用带轮、链轮等驱动时应设托架支承，以防主动齿轮轴承受径向力。
If the pulley, sprocket-driven, such as supporting brackets should be established to prevent the initiative gear bearing the radial force.
若用带轮、链轮等驱动时应设托架支承，以防主动齿轮轴承受径向力。
If use the belt wheel, wheel, etc, shall set bracket support, in case of driving gear bearing by the radial force.
环拉力在带的各边不同，这种现象由于两带轮间支承面速度不同造成的。
It is considered that this phenomenon is caused by difference of saddle surface speed between two pulleys.
本文还描述了附加的实验研究，测出了变速器内两带轮的切向滑动速度。
It describes additional experimental work, measuring the belt-slip speed tangentially about both of the pulleys in the variator.
多元化的带轮的手段，提供参与的手段之间的说，电源，并表示转子的手段。
A plurality of sheave means for providing engagement means between said power source and said rotor means.
多元化的带轮的手段，提供参与的手段之间的说，电源，并表示转子的手段。
A plurality of sheave means for providing engagement means between said power source and said rotor means.
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