film roll

Then, we build the model of all parts of control system: the transmission model of DC servo, the tension model, the tension sensor model, the real-time film roll's diameter model and rolling speed model.

然后，分别建立了卷绕控制系统中的伺服传动模型、张力模型、张力传感器模型、薄膜卷实时卷径模型以及卷心的线速度模型，并对其进行了分析研究。

The formation process, dynamic variation, deciduous causes of oxide film of work roll are analyzed, and the control methods have been put forward.

分析了氧化膜的形成过程、动态变化及脱落原因，并提出了控制方法和措施。

I want to buy two rolls of film and a roll of slide film.

我要买两卷底片，另外还要一卷正片。

Structure and Performance of Several Counters for Film Length of Roll Coating Plant

卷绕式真空镀膜机几种膜长计数装置的结构与特点

There are three exposures left on this roll of film.

这卷胶卷还有三张没拍。

Developing Mathematical Model for Relative Thickness of Oil Film in Support Roll Bearing of Plate Mill

中厚板轧机相对油膜厚度模型的建立

Hey, you know? There's still some film left on this roll.

嘿，你知道吗？这一卷还有一些底片。

How many photos can be taken with a roll of film?

一卷胶卷可拍多少张照片?

It is usually difficulty to obtain film coefficients between the working roll and the coolant fluid as we solve the temperature field of the roll.

工作辊与冷却液之间对流换热系数的确定是轧辊温度场分析的难点。

If you want doubles, we'll give you a free roll of film for each roll you bring in.

如果你要加洗的话，每加洗一卷，我们会免费送你一卷胶卷。

Care is needed when loading the roll to prevent twisting or kinking the film

装胶卷时要小心，别使胶片扭结。

Abstract: the defects of the needle-shaped hole and narrow white threads on the strip surface have close relationship with oxide film of work roll.

文摘：工作辊表面氧化膜状态与带钢表面氧化铁皮细孔及小白条压入缺陷的产生有密切关系。

In this paper, the structure and calculating principle of several counters for film length of roll coating plant are described, and the performance and use are analysed and summed here.

本文介绍了卷绕式真空镀膜机几种膜长计数装置的结构及计数原理，并分析、总结了各自的特点及应用场合。

a roll of film

一卷胶卷

Slurry pressure distribution, resultant forces and moments acting on the wafer are calculated in typical conditions of the wafer polishing, and then nominal clearance of the slurry film, roll and pitch angles at the steady state are obtained.

在标准研磨条件下计算出了抛光液压力分布，同时得到了抛光液膜厚、转角以及倾角的稳定状态。

Care is needed when loading the roll to prevent twisting or kinking the film.

装胶卷时要小心，别使胶片扭结。

The traction forces on the plastic film roll in an auto-packer

包装机中塑料卷所受牵引力的研究

In further analysis, it given that in primary design of roll body, the radiation and air convection could be neglected, only the head transfer in stable state between casting film and roll should be considered;

在进行流延辊辊体设计时，可以忽略辐射及空气对流的冷却作用而按照稳态问题进行计算；