积分: integral; integrate; integra ...线积分: curvilinear integral; kurvenintegral line integral; line integral闭合线积分: closed line integral闭回线积分: circulation闭围线积分: closed contour integral次法线积分: subnormal integral复曲线积分: complex curvelinear integral光线积分器: light integrator路线积分: path integrals切线线积分: tangential line integral曲线积分: line integral围线积分: contour integral延迟线积分器: delay line integrator弗雷德霍线积分方程: fredholm integral equation线积分与路线的无关性: independence of path of a line integral环线: circle line; dividing-line; loop line; loop wire; loowire; ring road; schort势场内线积分只与起止点有关: the fundamental theorem of calculus for line integral半环线: douglas' line; linea arcuata; linea semicircularis; semicircular line北环线: northern link带环线: eyelet wire单环线: single link line环线,圈线。: loop line环线法: looping method南环线: kowloon southern link内环线: the inner-ring road