nominal pitch

简明释义

标称螺距

英英释义

例句

1.The nominal pitch of the gear affects its compatibility with other gears in the system.

齿轮的名义螺距会影响其与系统中其他齿轮的兼容性。

2.The nominal pitch of the screw is 1.5 mm, which is suitable for most applications.

这个螺丝的名义螺距是1.5毫米，适合大多数应用。

3.In this plumbing project, we need pipes with a nominal pitch of 2 inches to ensure proper flow.

在这个管道项目中，我们需要名义螺距为2英寸的管道，以确保正常流动。

4.The manufacturer specifies the nominal pitch for the threads to ensure standardization.

制造商规定了螺纹的名义螺距以确保标准化。

5.When selecting a belt, make sure the nominal pitch matches the sprocket specifications.

选择皮带时，请确保名义螺距与齿轮规格相匹配。

作文

In the world of music and acoustics, the term nominal pitch refers to the theoretical frequency at which an instrument is designed to sound. This concept is crucial for musicians, composers, and instrument makers alike, as it provides a foundation for tuning and harmony. Understanding nominal pitch helps us appreciate how different instruments can blend together to create beautiful music. For instance, when a piano is tuned to A440, it means that the nominal pitch of the note A above middle C is set to 440 Hz. This standard has become widely accepted, allowing musicians across various genres to collaborate more effectively.The importance of nominal pitch extends beyond just tuning instruments. It also plays a significant role in the construction of musical scales. Each scale is built upon a specific nominal pitch, which serves as the starting point for determining the frequencies of the other notes within that scale. For example, in a major scale, the intervals between notes are defined based on the nominal pitch of the tonic note. This relationship between the nominal pitch and the scale structure is essential for understanding how music is composed and performed.Moreover, the concept of nominal pitch can vary depending on the context. Different musical traditions and genres may adopt different standards for tuning. For example, early music often utilized a lower nominal pitch compared to modern orchestras, which typically adhere to A440. These variations can produce distinct tonal qualities and characteristics in the music, showcasing the flexibility and diversity of musical expression.Another interesting aspect of nominal pitch is its relationship with the human perception of sound. Our ears perceive pitch logarithmically, meaning that each half-step increase in pitch corresponds to a frequency increase by a factor of the twelfth root of two. This perception influences how we understand and interpret nominal pitch. Musicians must be aware of this relationship when performing, as slight deviations from the nominal pitch can significantly affect the overall sound of a piece.In conclusion, the term nominal pitch encapsulates a fundamental aspect of music theory and practice. It serves as a reference point for tuning instruments, constructing scales, and understanding the nuances of musical performance. By grasping the concept of nominal pitch, musicians can enhance their skills and deepen their appreciation for the art of music. Whether one is a performer, composer, or simply a lover of music, recognizing the significance of nominal pitch can lead to a richer and more fulfilling musical experience.

在音乐和声学的世界中，术语名义音高指的是乐器设计发出声音的理论频率。这个概念对音乐家、作曲家和乐器制造商来说至关重要，因为它为调音和和声提供了基础。理解名义音高帮助我们欣赏不同乐器如何融合在一起创造美妙的音乐。例如，当一架钢琴调到A440时，这意味着中音C上方的A音的名义音高设定为440赫兹。这个标准已被广泛接受，使得各个流派的音乐家能够更有效地合作。名义音高的重要性不仅仅体现在调音乐器上。它也在音乐音阶的构建中发挥着重要作用。每个音阶都是基于特定的名义音高构建的，它作为确定该音阶内其他音符频率的起点。例如，在大调音阶中，音符之间的间隔是根据主音的名义音高来定义的。这个名义音高与音阶结构之间的关系对于理解音乐的创作和演奏至关重要。此外，名义音高的概念可能会根据上下文而有所不同。不同的音乐传统和流派可能采用不同的调音标准。例如，早期音乐通常使用比现代管弦乐队低的名义音高，后者通常遵循A440。这些变化可以产生独特的音色和特征，展示了音乐表达的灵活性和多样性。名义音高的另一个有趣方面是它与人类听觉的关系。我们的耳朵以对数方式感知音高，这意味着每个半音音高的增加对应于频率按二分之十二次根的因子增加。这种感知影响我们如何理解和解释名义音高。音乐家在演奏时必须意识到这种关系，因为轻微偏离名义音高可能会显著影响作品的整体声音。总之，术语名义音高概括了音乐理论和实践的一个基本方面。它作为调音乐器、构建音阶和理解音乐表演细微差别的参考点。通过掌握名义音高的概念，音乐家可以提升他们的技能，并加深对音乐艺术的欣赏。无论是表演者、作曲家还是单纯的音乐爱好者，认识到名义音高的重要性都能带来更丰富、更充实的音乐体验。