| 摘要 |
An electroacoustic component includes a substrate that includes a quartz single crystal. The quartz single crystal has a first Euler angle λ: −5°≦̸λ≦̸5°, a second Euler angle μ, and a third Euler angle &thetas;. A contiguous region of the quartz single crystal has the following vertices Pi(μi, &thetas;i): (23°, 20°), (60°, 17°), (110°, 30°), (105°, 42°), (60°, 30°), (23°, 25°).
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