1. 熱線風速儀法：這是一種常用的風速測量方法。熱線風速儀利用熱線的冷卻效應來測量風速。將熱線風速儀插入管道內，待熱線穩定后，讀取風速儀上的風速讀數。

1. Hot wire anemometer method: This is a commonly used method for measuring wind speed. The hot wire anemometer uses the cooling effect of the hot wire to measure wind speed. Insert the hot wire anemometer into the pipeline, wait for the hot wire to stabilize, and then read the wind speed reading on the anemometer.

2. 熱線風速計法：類似于熱線風速儀，熱線風速計也是利用熱線的冷卻效應測量風速的。將熱線風速計置于管道內或管道末端，讀取風速計上的風速讀數。

2. Hot wire anemometer method: Similar to a hot wire anemometer, a hot wire anemometer also uses the cooling effect of the hot wire to measure wind speed. Place the hot wire anemometer inside or at the end of the pipeline and read the wind speed reading on the anemometer.

3. 風速儀法：使用風速儀或風速計進行測量。將風速儀探頭置于管道內，讀取風速儀上的風速讀數。可以在不同位置進行多次測量，然后取平均值。

3. Anemometer method: Use an anemometer or anemometer for measurement. Place the anemometer probe inside the pipeline and read the wind speed reading on the anemometer. Multiple measurements can be taken at different locations, and then the average value can be taken.

4. 流量罩法：這是一種間接測量管道風速的方法。在通風管道上安裝流量罩，流量罩內部設有孔板、靜壓孔等裝置。通過測量靜壓差和差壓計讀數，可以計算出管道風速。

4. Flow hood method: This is an indirect method for measuring pipeline wind speed. Install a flow hood on the ventilation duct, which is equipped with orifice plates, static pressure holes, and other devices inside. By measuring the static pressure difference and the differential pressure gauge reading, the pipeline wind speed can be calculated.

在進行風速測定時，要確保通風系統正常運行，并關閉或調整風閥和調節閥，以確保系統穩定。同時，要保證測量設備的準確性和完好性，以獲得準確的風速測量結果。此外，還需確保管道內無堵塞物或異物的存在，以避免對測量結果產生干擾。

When conducting wind speed measurement, it is necessary to ensure the normal operation of the ventilation system and close or adjust the air valve and regulating valve to ensure system stability. At the same time, it is necessary to ensure the accuracy and completeness of the measuring equipment to obtain accurate wind speed measurement results. In addition, it is necessary to ensure that there are no blockages or foreign objects inside the pipeline to avoid interference with the measurement results.

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