post-free的翻译，读音

例句

This paper summarized high yield cultivation techniques of pollution-free rice as post-taro cropping in Songxi County. 该文总结松溪县芋后茬种植无公害水稻的高产栽培技术。

The use of post-tensioned beams allows for the creation of column-free spaces, which permits maximum flexibility within the office space. 使用后张拉梁建造无柱空间，可最大限度为办公空间创造灵活性。