There is no doubt that a DI application is a more testable and cleaner architecture than the sprawling singleton hair-ball.
毫无疑问，使用DI的应用要比东一块西一块的单件应用有更可测、更清晰的架构。
2
When fully opened, the valve's channel is smooth and linear, with an extremely small flow resisting coefficient and no pressure loss, and the pipeline can be cleaned with hair-ball through it.
阀门在全开时，通道平滑为直线，流阻系数极小，无压力损失，可通毛球清扫管线。
3
The night of the ball, she was very busy . The stepsisters needed help with their dresses and hair .