number and line system号线系统
Number r line diagram数轴
Number Per Line每行声明变量的数量
Number r line数轴;数线;规定了原点
Number of line phase测量线路的相数
dnl define number of line规定行数
dead-number trunk line空号中继线
Extended real number line扩展的实数轴
N(名词) an infinite line on which points represent the real numbers 实数直线; 点代表实数的无限的线