插: 动词1.(把细长或薄的东西放进、挤入、刺进或穿入; 插上; 插进) stick in; insert 短语和例子把插头插上 insert the plug in a socket; plug in; 把门插上 bolt the door; 把双手插在口袋里 put one's hands in one's pockets; 山峰高插入云 peaks penetrating
线性: [数学] [物理学] linear; linearity◇线性代数 linear algebra; 线性方程 linear equation; 线性规划 linear program; mathematical programming; linear programming; 线性函数 linear function