葶苈子 葶苈子的英文 英语翻译 semen lepidii; semen tingli 拓展翻译 葶苈Draba nemorosa葶苈属Draba L.算子functor; operator算子表示法operator notation算子方程operator equation算子函数operator function算子环operator ring算子阶组operator hierachy算子精度暂存器operand-precision register算子矩阵operator matrix算子优势operator dominance算子域operator domain髓探子nerve probe碎片离子fragment ion碎石子blinding碎亚麻子crushed linseed碎椰子音coconut sound孙子grandchildren; grandson孙子剩余定理CRT笋瓜子squash seed