headrace的音標是[?hed?ra?s]，發音為：hed-rāz。

基本翻譯是“急流”。

速記技巧：將“headrace”拆分為“head”和“race”，意為“頭”和“賽跑”，可以聯想到河流的上游，即急流。同時，也可以使用諧音記憶，將“headrace”音譯為“黑德瑞”。

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Headrace，英語單詞，主要用作名詞，意為“急流”。

變化形式：復數：headraces。

相關單詞：

1. race：比賽，賽跑；種族；競賽；速度；奔跑。

2. stream：小河；溪流；流；水道；流線。

3. torrent：急流；湍急的水流。

4. current：水流；氣流；趨勢；涌入。

5. flow：流動；流出；流出量。

6. surge：洶涌；洶涌的波濤；激增。

7. flood：洪水；泛濫；大量涌入。

8. whirl：旋轉；打轉；混亂。

9. currents：水流；潮流。

10. streamline：使輕便，使簡化。

Headrace在英語中是一個常用的詞匯，它表示急流或水流的意思。這個詞來源于古英語，它的詞源可以追溯到“haed”這個詞根，意為“頭”或“前端”。隨著時間的推移，這個詞逐漸演變成了“headrace”，用來描述水流或急流的源頭或開始部分。同時，它也經常在水利工程和自然環境中使用，用來描述水流或河道的流動狀態。

Headrace

常用短語：

1. headrace channel 主流渠

2. headrace tunnel 引水隧洞

3. undercut of the headrace 引水渠反作用

4. headrace flow 渠底水流

5. headrace bed 引水渠床面

6. headrace valley 引水渠谷

7. headrace flow control 引水渠底流控制

雙語例句：

1. The water from the headrace flowed into the millpond.

2. The construction of the headrace tunnel was a challenging task.

3. The undercut of the headrace caused flooding in the downstream area.

4. The engineers had to carefully control the headrace flow to avoid erosion.

5. The headrace bed was eroded by the strong current, requiring repairs.

6. The headrace valley provided a convenient route for water to flow into the power station.

7. The headrace flow control system was essential for maintaining stable water supply to the power plant.

英文小作文：

標題：Headrace Tunnel Construction - A Challenging Task

The headrace tunnel is a crucial component of a hydroelectric power plant, as it allows water to flow into the power station and generate electricity. However, the construction of a headrace tunnel is a challenging task, as it requires precise engineering and construction techniques to ensure that the tunnel is safe and effective.

The process of building a headrace tunnel involves several stages, including excavation, lining, and drainage systems. During excavation, workers use heavy machinery to remove soil and rock, forming a tunnel that follows the desired route. The lining of the tunnel ensures that it is strong and durable, while drainage systems are installed to prevent water from seeping into the tunnel and causing damage.

The construction of a headrace tunnel requires careful planning and coordination between various engineering teams, as it involves multiple disciplines such as geology, hydraulics, and construction engineering. Despite its complexity, the successful completion of a headrace tunnel can result in a reliable source of electricity for communities and contribute to sustainable energy sources.