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Purpose The properties of collimator scatter factor was measured in order to form the basis of clinical usage.

目的 测量60Co机准直器散射因子的性质，为临床使用提供依据。

Geometry of the collimator is vital to the imaging quality.

因此，准直器的形状和它们摆放的方向将直接影响成像的质量。

Optimization was carried out for absorber thickness and length of collimator, and the calculating result was evaluated.

采用MCNP程序对准直器的长度和吸收片厚度进行了模拟优化设计，并对计算结果进行了评定。

Objective To design up a simple and accurate calculation method for collimator scatter factor, which can be easily implemented in clinical works.

目的 建立一种简单准确适合于临床应用的准直器散射因子的计算模型。

The change of return loss in fiber collimator with changing the fiber collimator′s parameter is explained.

分析了改变光纤准直器的参数而引起回波损耗变化的原因。

On the laser collimator consecutive procedures, there are image processing and motor control aspects.

详细说明：关于激光连续准直方面的程序，有图像处理和马达控制等几个方面。

Automatic measuring system of alignment error based on laser collimator technique.

基于激光准直的直线度误差自动测量系统。

In the stray light measurement device, collimator is selected according to lens parameter.

讨论了准直物镜使用与否对杂散光系数测量结果的影响。

During the design process of Blu-ray disc optical pick-up, the optical system and the collimator lens design is especially important.

在蓝光光盘光学头设计过程中，光学系统的设计，有举足轻重的作用，特别是准直镜的设计。

The measuring principle of alignment error based on laser collimator technique was introduced.

介绍了基于激光准直原理的直线度误差自动检测方法，详细分析了激光器、传感器信号处理电路和数据采集处理系统的设计。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。