Y-axis Y轴
Y-bend Y形管
Y-connection Y形接法
Y-coordinate Y坐标
Y-cut crystal Y切割晶体
Y-grid Y形格网
Y-joint Y形接头，叉形接头
Y-level Y式水准仪
Y-line Y轴，Y线
y-tilt Y倾角
YA garnet 钇铝石榴石
YA laser 铝酸钇激光器
YAG laser 钇铝石榴石激光器
YAG Laser Crystals 雷射晶体 (YAG)
YAG Laser Medical Systems YAG雷射医疗系统
YAG Laser Processing Equipment for Joining YAG雷射加工机(焊接加工用)
YAG Laser Processing Equipment for Marking YAG雷射加工机(标记用)
YAG Laser Processing Equipment for Removal YAG雷射加工机(切割加工用)
YAG Laser Processing Equipment for Scribing YAG雷射加工机(铭刻用)
YAG Laser Processing Equipment for Semiconductor Lithorgraphy YAG雷射加工机
YAG Laser Processing Equipment for Semiconductor Trimming YAG雷射加工机
YAG Laser Processing Equipment for Surface Treatment YAG雷射加工机(表面处
yard 码（=0.9144米）
yardstick 码尺
yaw （1）偏航（2）偏转
yellow 黄色[的]
yellow brass 黄铜
yellow filter 黄滤色镜
yellow heat 黄热
yellow ochre 赭黄
yellow sodium light 黄色钠光
yellow spot 黄斑
yellow wax 黄蜡
yellowish 淡黄的，带黄色的
yellowness index 黄度指数
Yerkes objective 约克物镜
Yerkes Observatory 钓克天文台
Yga garnet 钇镓石榴石
yield（1） 屈服（2）产额
yield of radiation 辐射强度
yield point 屈服点
yielding rubber 缓冲橡皮
YLF Laser Crystals 雷射晶体(YLF)
YLF Lasers YLF雷射
yoke（1） 架，座（2）轭（3）偏输线圈
yoke axle 轭轴
yoke ring 轭环
Young Construction 杨氏结构
Young s Modulus 杨格模量；杨格系数
Young s Two-Slit Interference 杨格双狭缝干涉
Young's diffraction theory 杨氏衍射理论
Young's double slit experiment 杨氏双缝实验
Young's eriometer 杨氏[晕环]测微径计
Young's experiment 杨氏实验
Young's interference fringes 杨氏干涉条纹
Young's modulus 杨氏模量
Young's two-slit interferometer 杨氏双缝干涉仪
Young-Thollon prism monochromator 杨氏-托龙棱镜单色仪
ytterbium  (Yb)镱
ytterbium gallium garnet 镱镓石榴石
ytterbium glass laser 镱玻璃激光器
yttrium  (Y)钇
yttrium aluminate laser 铝酸钇激光器
yttrium aluminitum garnet 钇