您要查找的是不是：
- The Doppler flow spectrum showed that the increase in the frequence and amplitude of positive flow spectrum could be important to the diagnosis of the congenital heart disease. 结论多普勒超声探测胎儿肝静脉血流频谱是完全可行的，其正向血流增高增多可为临床诊断胎儿某些先心病提供重要依据。
- To avoid this problem, an external electron source (a negative cathode or an electron gun) injects electrons into the positive flow to electrically neutralize it, which leaves the spacecraft neutral. 为避免这个问题，必须使用外部电子源（负电极或电子枪）将电子加入正离子流，使太空船维持其电中性。
- Feel the energies of positivity flowing through you. 你感到了积极的能量,它流经你的全身。
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- Her behaviour was a positive outrage. 她的行为残暴到了极点。
- I'm positive she told us to meet at noon. 我肯定她是告诉我们在中午见面。
- In convection, hot currents flow upwards. 在对流中热气流向上运动。
- After several pumps, the water began to flow. 用泵抽了几下之后,水流出来了。
- This charge is a positive charge. 这个电荷是正电荷。
- She shows a very positive attitude to her work. 她工作态度非常积极。
- A flow of word is no proof of wisdom. 口若悬河，未必明智。
- Can you be positive about what you hear? 你对听到的话有把握吗？
- Several conclusions flow from this hypothesis. 从这项假设中可以得出几个结论。
- Many benefits will flow from this discovery. 这项发现将带来许多好处。
- Turn the cock to increase the flow of water. 请开大龙头以增加水流量。
- He has a positive attitude towards life. 他对生活持有积极的态度。
- Office politics just seem to flow over him. 同事之间互相倾轧、 勾心斗角的事似乎并未波及到他。
- The number of positive numbers is infinite. 正数的数目是无穷的。
- The business has a cash flow of￡50000 a month. 这家商行的现金流转为每月五万英镑。
