Document Control Voucher (banking & finance)文件控制凭证(金融理财) Double-Concave Lens双凹透镜 Directional Control Valve定向控制阀 Demand Controlled Ventilation (HVAC)要求控制通气(HVAC) Dress Code Violation服装的侵害 Document Cutoff Value文件截止的价值 Dimensionless Concentration Variable无量纲的浓度变量 Descendants of Confederate Veterans盟军的退伍军人 Defenders Council of Vermont佛蒙特州议会的防守 Direct Current Volts直流电伏特 Design Configuration and Verification设计的配置和验证 Defense Combat Value防御作战的价值