基本解释[数] 体对角线英汉例句双语例句The nerve fibers on body surface in pairs and parallel are diagonal and cross to form a nerve network on body surface.虫体表面神经纤维成对并行，斜行交叉，构成表面神经网。body diagonal更多例句词组短语短语three -body non-diagonal boson interaction 三体非对角相互作用body diagonal更多词组专业释义数学体对角线