The new impeller not only can make the mixed liquids homogeneous, but also has the advantage of energy sav…

不但能在较短的时间内实现全罐的均匀混合，没有死角，而且还具有节能降耗的优点。

The under water installation of this pipeline was successful. This design has advantages of investment sav…

该管道在水下安装顺利，具有节约造价、节省工期、适应不同地基条件的特点。

Results:In 354 cases of AV, 192 cases (54. 2%)were snuffbox AV (SAV), and 162 cases (45. 8%)were forearm AV (FAV);

结果：本组354例自体动静脉内瘘中，鼻烟窝动静脉内瘘192例（54． 2%），前臂动静脉内瘘162例（45． 8%）；

The eccentric cam beam pumping unit make full use of original member and optimize key member, so it makes each member's force rational, and energy sav…

充分利用原机的构件，优化关键部件，使各构件受力合理，并具有较合适的安全系数，节能效果显著，运转平稳，管理方便。