收缩区 meaning in Chinese
constricted area
contracted area
Examples
- The experiment data shows that the region with large surface gradients in longitudinal and horizontal direction locates at the vicinity of spur dike . backwater appear upstream the spur dike , and there exist a recirculation area at the same side downstream the spur dike
实测水位资料表明水流纵横向比降大的区域位于丁坝上下游附近，在丁坝的上游出现壅水，下游存在有收缩区和恢复区，离丁坝越远纵横向水位的变幅越小。