屈光测量...

cardiologist的音标：cardiologist的英式发音音标为：[ˌkɑ:di'ɒlədʒɪst]cardiologist的美式发音音标为：[ˌkɑrdi'ɑlədʒɪst]...

n.二氧（杂）芑( dioxin的名词复数 )...

These can range from lighting dimmers and climate control systems to security and audiovisual appliances.这些设备包括从调光器、气候控制器到安全装置和音像设备.Would you please tell me how much this audiovisual disk is?请问这种声像带多少钱一盘?Some libraries c...

heterodiode的音标：heterodiode的英式发音音标为：[hetərə'daɪəʊd]heterodiode的美式发音音标为：[hetərə'daɪoʊd]...

分娩监护仪...