英语语法分析

Types currently must be nonnegative.

类型目前必须是非负的。

Those main proofs of this part are based on nonnegative.

这一部分结果的论证建立在非负矩阵的理论基础上。

The coefficient of friction can be set to any nonnegative value.

可以设置摩擦系数成任何非负值。