An instrument that indicates wind direction is known as a(n)（）.
举一反三
- Which instrument is known as Chinese violin?
- Backing means the wind ___ . A: is changing clockwise in direction B: is changing anticlockwise in direction C: is changing cyclonically or variably in direction D: emains unchanged in direction at the time
- 65. The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current's
- In China, when spring is coming, from which direction does the wind blow?
- The bed-plate is secured in the longitudinal direction by means of bolts known as （）.