| 1. | Can you free the propeller from the weeds ?
你能把螺旋桨上的草除掉吗？ |
| 2. | The propeller turns a small d.c. generator .
螺旋桨带动一个小型直流发电机。 |
| 3. | The ship's propellers churned the waves to foam .
轮船的推进器将海浪搅出泡沫。 |
| 4. | Propeller meters introduce small pressure losses .
螺旋浆式流量计的压力损失小。 |
| 5. | Propeller fans exhaust air through holes in the wall .
螺旋式通风机从壁孔中排出空气。 |
| 6. | The propeller can follow the wind velocity closely during high-speed gusts .
螺旋桨在有高速狂风时能紧紧地追随风速。 |
| 7. | The turboprop engine is very much like the turbojet. it has an additional part, a propeller .
涡轮螺桨发动机与涡轮喷气发动机十分相似。它多了一个螺旋桨部件。 |
| 8. | An air straightener should be placed down stream from propeller to counteract circular air motion in the tube .
一种气体直线流动器应该使气流从推进器的反作用中使气体的活动在管内循环。 |
| 9. | Among commonly used types are those employing either a propeller or cups for measuring wind speed and a vane for measuring wind direction .
普通使用的型式是测量风速的叶扇或风杯及测量风向的风标。 |
| 10. | Jet engines with which most modern high-speed aircrafts are equipped develop thrust on the same principle as the propellers of conventional aero-engines .
大多数现代高速飞机装备的喷气发动机产生推力的原理，与普通航空发动机的螺旋桨相同。 |
