XOR=Exclusive OR “异” 或(逻辑运算)XXs或 X's,X级电影, 成人电影(十八岁以下儿童不得观看)xylanase pretreatment酶预处理X-ray fluorimetry X射线荧光分析法X-shape Cross Action“X”型交叉动作X'mas is approching.X-band passive array爱克斯波段无源阵Xysticus nyingchiensisn.林芝花蟹蛛X-ray spectroscopy X射线光谱学Xylocopa appendiculatan.黄胸木蜂Xylocopa tranquabarican.夜木蜂X-ray spectrograph X射线摄谱仪