每面内的颜色都相同，这是因为光线是平行的。
Within a side, the color stays the same because of the light's parallel rays.
如果宇宙的时空像球体表面一样正向弯曲，平行的光线就会交合在一起。
If the universe's space-time is positively curved, like the surface of a sphere, parallel beams would come together.
该层的所有房间平行布局，因此浴室、卧室、厨房、餐厅和客厅都可以享受到充足的自然光线。
Allthe areas on this floor are arranged in parallel, so that each room enjoys natural light: bathrooms, bedrooms, kitchen, dining and living room.
远心镜头拥有与它的光轴平行的主光线，同轴照明是非常理想的。
Telecentric lens has parallel chief ray with its optical axis and is ideal for co-axial lighting.
我们发现了街道上有一处与我们平行的住宅，但它光线不好且潮湿。
We found a house in the road parallel to ours but it was a bit dark and damp.
驻波是曝光中的寄生效应，是光线垂直入射到不同的平行平面介质层之间，经多次反射并干涉形成的。
Standing wave is parasitic effect of exposure, generated by multi reflection and interference of rays vertically incident upon parallel medium layers.
只有在近轴光线条件下，平行光通过凸透镜才可近似聚焦于一点。
The parallel light rays of the prnicipal axis that approach a convex lens can converge to the focal point.
光线从有特色的阳极氧化铝制造的外表面平行地或是有角度地反射出去。
Light bounces from the distinctive facade cassettes made of anodised aluminium, both flat and sloped.
来自光源（1）的光线的轴线以及反向 散射到光检测器（3）的光线的轴线具有彼此紧邻并基本平行或重合的部分。
The axes of the light rays from the light source (1) and the back-scattering to the light detector (3) have mutually closely adjacent and substantially parallel or coincident portions.
首先，在三维空间内利用光线追迹法，对刻线不平行而光栅面平行时的压缩光栅对进行研究。
Firstly, the system of parallel grating pair, in which the grating grooves is unparallel while the grating surfaces is parallel, has been studied with the tri-dimensional ray-tracing method.
平行光通过折射率存在梯度的场，光线产生偏转，即产生云纹效应。
The method is based on measuring the deflection of rays from a collimated light beam due to gradients in refractive index.
安装了在线滤光片支架后，穿过滤光片的光线是平行的。
In an In-Line filter Holder setup, the light that passes through the filter is collimated.
安装了在线滤光片支架后，穿过滤光片的光线是平行的。
In an In-Line filter Holder setup, the light that passes through the filter is collimated.
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