Trombone

(noun.) a brass instrument consisting of a long tube whose length can be varied by a U-shaped slide.

录入:门罗

• In the brass wind instruments such as horn, trombone, and trumpet, the lips of the player vibrate and excite the air within. 伯莎M.克拉克. 科学通论.
• All of these instruments, however, except the trombone possess some valves which, on being pressed, vary the length of the tube and alter the pitch accordingly. 伯莎M.克拉克. 科学通论.
• In the trombone, valves are replaced by a section which slides in and out and shortens or lengthens the tube. 伯莎M.克拉克. 科学通论.

录入:威廉敏娜