... 非负系数多项式 polynomial with nonnegative coefficient 非负项 nonnegative term 非负项级数 series of nonnegative terms ...
双语例句
1
Here, the nonlinear term is bounded below and need not be nonnegative.
这里,非线性项是下有界的并且不需要是非负的。
2
The present paper studied the global existence of nonnegative solutions of one-dimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection.
An existence theorem of positive solution is established for a superlinear second-order three-point boundary value problem. Here, the nonlinear term is bounded below and need not be nonnegative.