| 1. | Cackled the old witch - lady , still nodding her high head - dress at the minister
那老妖婆咯咯地笑着，还向牧师一劲儿点着戴高帽的头。 |
| 2. | A research on canceling telescopic joint of the penstock about the high head development near power house
取消高水头电站压力钢管近厂房段伸缩节研究 |
| 3. | Research on vibration problem of hydraulic turbines under the high head and low output operation conditions
水轮机在高水头低负荷工况下振动问题的研究 |
| 4. | It possesses the characters of high head , high velocity , long operation time and large variation range of water level
它具有水头高、流速大、运行时间长、水位变幅大等特点。 |
| 5. | Under the function of gravity , as long as the falling head exist , liquid will flow from high head to low head
它具有分布广、埋藏浅、厚度大、水质好、水量丰富等特点。是浅井开采的主要目的层。 |
| 6. | Conversation . " so , reverend sir , you have made a visit into the forest , " observed the witch - lady , nodding her high head - dress at him
“可敬的牧师先生，原来你去拜访了树林， ”妖婆对他点点戴着高帽的头，开口说。 |
| 7. | The results show that the screw centrifugal pump is a type of well - working pump with good performance . it has higher head and efficiency with better ability of anti - erosion
研究结果表明，螺旋型离心泵是一种性能优良的增压泵，具有较高的扬程和效率，良好的抗气蚀性。 |
| 8. | A new type of very low specific speed pump ? roto - jet pump is presented for low flowrate and high head transportation , which is introduced at the end of the thesis
论文最后主要研究了一种隶属于极低比转数离心泵范畴的新型泵? ?旋喷泵，它是一种新型的石油化工用泵，具有流量小、扬程高、流量扬程曲线平缓的特点。 |
| 9. | It is a vane pump with high head , small flow and low specific speed , which is smaller , flight and simpler in structure than positive displacement pump mulfistage centrifugal pump , and may handle liquid of high gas or steam content
该泵是一种高扬程，低比速的叶片泵，比容积式泵和多级离心泵体积小、重量轻、机构简单等优点，并可以输送气体或蒸气含量较轻的液体。 |
