Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.
使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。
There are four kinds of lens shapes, which do you like best?
我们有四种镜片形状，您最喜欢哪种？
On account of four distortions such as signal lag, radial distortion, eccentric distortion and thin lens, etc. a precision distortion correction model is established.
新模型考虑了信号滞后、径向、偏心和薄透镜等四种畸变，建立了精确的畸变矫正模型。
This system consists of fourmain parts, namely, the endoscope, the optical links including four rigid guide tubes for theimage transfer lens, the photographic adapter and the camera.
给出一种新型的工业用内窥镜摄影系统，该系统由内窥镜、光学关节（四节刚性转像透镜导管）、摄影联接管和摄影机四部分组成。
There are four types of subtle traps in Gaoyou sag, Which is fault-lithologic trap, sandstone up pinchout trap, lens trap and stratigraphic onlap trap.
高邮凹陷的隐蔽圈闭主要有四种类型，即断层岩性圈闭、透镜体圈闭、砂岩上倾尖灭圈闭和地层超覆圈闭。
With matrix conversion of geometry optics as a basis, simulation and modeling for complex multi-lens imaging optical system for four-quad splitting are carried out through light ray trace.
以几何光学的矩阵变换为基础，通过光线追迹的方法，对四象限分光的多透镜成像复杂光学系统进行仿真建模。
Adjustable temple length with four positions. Adjustable lens inclination with six angles.
并且具有调节的功能，可调镜头六角倾向。
A lens (middle) reduces the mask's image. So what gets printed on the wafer is typically four times smaller linearly than the mask's pattern.
图中间的透镜起缩小掩模图案的作用，使得在晶圆上得到的电路图案长度上是掩模的四分之一。
Four common etiologies of abrasion are discussed: traumatic abrasion, contact lens abrasion, foreign body abrasion, and recurrent erosion.
四种常见的病因磨损进行了讨论：外伤性磨损，隐形眼镜磨损，异物磨损，和经常性的侵蚀。
There are no less than four such Numbers visible to my lens on the inside of this case.
我用放大镜在这个表壳内发现了至少四个这样的号码。
Chapter four analyzes image style of Wang Xiaoshuai's films, from the clam and aggressive use of the lens, steady but not over cautious picture compositions and harmony and implications of color use.
第四章从平静而有力度的镜头运用、沉稳而不拘谨的画面构图和和谐而有寓意的颜色运用等方面分析了王氏电影的影像风格。
60 years ago, both urban and rural cooking stoves, usually two foci, poor people as "ok kitchen" (single-lens reflex), wealthy family in four lesions.
60年代前，城乡炊具均为柴灶，一般为两眼灶，贫苦人家为“行灶”(单眼)，大户人家四眼灶。
60 years ago, both urban and rural cooking stoves, usually two foci, poor people as "ok kitchen" (single-lens reflex), wealthy family in four lesions.
60年代前，城乡炊具均为柴灶，一般为两眼灶，贫苦人家为“行灶”(单眼)，大户人家四眼灶。
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