基本解释n. （德）入境签证英汉例句双语例句Authors present a technology for inverse deduction of OD matrix based on VISUM, and give a detailed account of the technology's key principle and application.提出了基于VISUM仿真软件的O-D矩阵反推技术，就该技术的核心原理与实施应用给予详细的阐述。Visum更多例句词组短语短语nationales Visum 国家签证das Visum 签证VISUM software VISUM 软件Visum m 签证Visum n 签证Visum更多词组