X contact X接點(diǎn)（萬(wàn)次及MF級(jí)燈閃光連動(dòng)用）
X-ary diffraction topography X射線(xiàn)衍射拓捕學(xué)
X-axis X軸[線(xiàn)]
X-band X帶
X-component X軸向分量
X-coordinate X坐標(biāo)，橫坐標(biāo)
X-cut crystal X切割晶體
X-flash  X閃光燈
X-line X軸，X線(xiàn)
X-parallax X視差
X-radiation X輻射
X-radioray X射線(xiàn)
X-ray (Rontgen ray) X射線(xiàn)（倫琴射線(xiàn)）
X-ray crystal analysis X射線(xiàn)結(jié)晶分析
X-ray crystallography X射線(xiàn)晶體學(xué)
X-ray detectoscopy X射線(xiàn)探傷法
X-ray diffraction X射線(xiàn)衍射
X-ray diffraction camera X射線(xiàn)衍射照相機(jī)
X-ray diffraction contrast X射線(xiàn)衍襯法
X-ray diffractogram X射線(xiàn)衍射圖
X-ray diffractometer X射線(xiàn)衍射儀
X-ray diffractometry X射線(xiàn)衍射測(cè)量術(shù)
X-ray emission spectrum X射線(xiàn)發(fā)射譜
X-ray examination X射線(xiàn)檢查
X-ray fluorescence X射線(xiàn)熒光
X-ray hologram X射線(xiàn)全息圖
X-ray holography X射線(xiàn)全息術(shù)
X-ray image dissection X射線(xiàn)析像
X-ray image intensifier X線(xiàn)像加強(qiáng)器
X-ray imaging telescope X射線(xiàn)望遠(yuǎn)鏡
X-ray inspection X射線(xiàn)檢查
X-ray interferometer X射線(xiàn)干涉儀
X-ray interferometry X射線(xiàn)干涉測(cè)量術(shù)
X-ray laser X射線(xiàn)激光器
X-ray metallography X射線(xiàn)金相學(xué)
X-ray microbeam technique X射線(xiàn)微束技術(shù)
X-ray microscope X射線(xiàn)顯微鏡
X-ray microscopy X射線(xiàn)顯微術(shù)
X-ray monochromator X射線(xiàn)單色器
X-ray optics X射線(xiàn)光學(xué)
X-ray photograph X射線(xiàn)照相
X-ray photography X光照相術(shù)
X-ray radiography X射線(xiàn)照相
X-ray space detector X射線(xiàn)宇宙探測(cè)器
X-ray spectrograph X射線(xiàn)攝譜儀
X-ray spectrography X射線(xiàn)攝譜學(xué)
X-ray spectrometer X射線(xiàn)分光計(jì)
X-ray telespcope X射線(xiàn)望遠(yuǎn)鏡
X-ray transmission photograph X射線(xiàn)透射照相
X-ray-induced fluorescence X射線(xiàn)感應(yīng)發(fā)光，X射線(xiàn)感應(yīng)熒光
X-tal 晶體
X-tilt X傾角
X-tube X[形]管
X-type X形，交叉形
X-unit(X.U.) X單位（波長(zhǎng)單位，=10-11厘米）
xanhopsia 黃視癥
xaser (X-ray laser) X射線(xiàn)激光器
Xe-lamp 氙燈
XeF laser 氟化氙激光器
xenon  (Xe)氙
Xenon /Xenon Flashlamps Light Sources 氙燈
xenon excimer laser 氙受激準(zhǔn)分子激光器
xenon flash lamp 氙閃光燈
xenon flashtube 氙-氦激光器
xenon lamp 氙燈
xenon laser 氙激光器
Xenon Lasers 氙分子雷射
xenon long-arc lamp 長(zhǎng)弧氙燈
xenon pulsed light source 脈沖氙燈
xenon search light 氙控照燈
xenon short-arc lamp 短弧氙燈
xenon tube 氙燈
xenon-acr lamp 氙弧燈
xenon-filled flashtube 充氙閃光管
xenon-filled linear flash lamp 充氙線(xiàn)性閃光燈
xenon-helium laser 氙-氪激光器
xenon-mercury lamp 汞氙燈
xerography 靜電印刷術(shù)，乾印術(shù)
xeroradiography 干板X(qián)射線(xiàn)照相術(shù)
xerox 靜電印刷復(fù)制
xi-jhyperon X超子
xylene 二甲苯
xyloid 木質(zhì)的
xylol 混合二甲苯
xylonite 賽珞璐（熱塑性硝化纖雄）