有螺纹的    threaded

螺纹压圈    threaded ring

车螺纹，攻丝    threading

螺线型相位    threadlike phase

三向正交位移元件    three orthogonal displacement component

三相接头    three phase connection

三元色    three primary colo[u]rs

三轴激光陀螺装置    three-axis laser gyro package

三射束光斑图像干涉仪    three-beam speckle pattern interferometer

三色照相机    three-colo[u]r camera

三色滤光片    three-colo[u]r filter

三组式变焦距镜头    three-component zoom lens

三座标测量仪    three-coordinates measuring machine

三维的，立体的    three-dimensional

立体电影    three-dimensional appeal

立体照相机    three-dimensional camera

立体电影    three-dimensional cinema

立体影片    three-dimensional film

三维条纹    three-dimensional fringes

三维光栅    three-dimensional grating

三维全息术    three-dimensional holography

三维像，立体像    three-dimensional image

三维成像器，立体成像器    three-dimensional imager

三维成像，立体成像    three-dimensional imaging

三维激光雷达    three-dimensional laser radar

三维光学变换    three-dimensional optical transform

立体照片    three-dimensional photo [graph]

立体照相术，立体摄影术    three-dimensional photography

立体放映    three-dimensional projection

立体投影屏    three-dimensional projection screen

立体放映机    three-dimensional projector

三维重现，立体重现    three-dimensional reconstruction

三维粗度    three-dimensional roughness

三维散射    three-dimensional scattering

三维景象    three-dimensional scence

三维面    three-dimensional surface

三维座标系    three-dimensional system of coordinate

三爪卡盘，三爪夹盘    three-jaw chuck

三透镜聚光器    three-lens condenser

三能级荧光固体    three-level fluorescent solid

三能级激光器    three-level laser

三能级量子放大器    three-level maser