对坐标的曲线积分
line integrals with respect to x，y，and z
line integrals with respect to x
Y
and z
微分方程的积分曲线
integral curve of a differential equation
重积分的对称性质
symmetric properties of n-fold integrals
余弦曲线弧长
arc length of cosine curve
正则曲线的长度
the length of a normal curve
PythagoreanB(?)zier速端曲线(PB曲线)
抽检特性曲线OC曲线
operating characteristic curve OC curve
第二类曲线积分
line integrals of the second type
第一类曲线积分
line integrals of the first type
first form curve integrals