偏光镜

The mineral constituents of the precipitates are confirmed to be lepidocrocite, calcite, whewellite and hydromuscovite under the polarized microscope and through infrared spectrum analysis.

在偏光镜下和通过红外光谱分析确认沉淀物为纤铁矿、方解石、水草酸钙石和水白云母等。

Polarizers are also handy for removing reflections from nonmetallic surfaces, like glass or water.

同时，偏光镜也能用来消除非金属表面的影响，比如玻璃和水。

This filter consists of two parallel polarizers,an electro-optical crystal and a two-zone half-wave plate.

该滤波器由两个透射光轴平行的偏光镜，置于其间的一个电光晶体和一个二区域λ/2波片组成。

Designs exist for screens that feed separate images to a viewer's right and left eyes, thus achieving the same effect as the polarising specs. Unfortunately, only one viewer at a time is able to benefit, because he has to sit in line with the centre of the screen in order for it to work.

有的设计是，不同的屏幕分别给左眼和右眼提供不同的影像来达到偏光镜的同样效果，不幸的是，一次只能一个人观看，因为观众必须坐在屏幕中间，才能达到效果。

THREE-DIMENSIONAL moving pictures have not changed much over the decades. Even Disney's latest contribution,"Meet the Robinsons", requires the audience to wear polarising glasses. Television has moved on a little more than cinema, but not much.

3维动态图像在过去的几十年里没有多大进展，即使是迪斯尼的新片：拜见罗宾逊，也需要观众带上偏光镜，电视比影院发展好一点，但也没多少。

Polymers are no more complex to produce than colour crystal.There are no filters, no polarisers and no backlighting, light is emitted off the front surface.

生产聚合物没有生产彩色晶体复杂，它们没有滤光镜、没有偏光镜、没有背光，光从正面发射出来。

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％。