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Weather
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Crystal, английский
- A solid with a regular array of atoms. sapphire (ruby laser) and yag (nd:yag laser) are two crystalline materials used as laser sources.
- A chemical formation of hard regular-shaped solids
- A type of inclusion. a crystal is a mineral deposit trapped inside the diamond.
- The regular solid geometric form assumed by a crystallized chemical element or compound, such as the dodecahedral, octahedral, cuboid, or other shapes assumed by a diamond.
- A clear, flawless diamond.
- Homogeneous solid chemical element or compound having a regular
- See transducer element. crystal, x cut: in ultrasonic testing, cut with face perpendicular to the x direction of the piezoelectric crystal. in a quartz slice so cut, a thickness mode of vibration occurs when the slice is electrically stimulated in the x direction. see also transducer element.15 crystal, y cut: in ultrasonic testing, piezoelectric crystal whose cut face is perpendicular to the y direction. in quartz, a transverse mode of vibration is obtained when the slice is electrically stimulated in the y direction. see also transducer element.15
- See transducer element. crystal, x-cut: cut with face perpendicular to the x-direction of the piezoelectric crystal.7 in a quartz slice so cut, a thickness mode of vibration occurs when the slice is electrically stimulated in the x direction.7,22 crystal, y-cut: piezoelectric crystal whose cut face is perpendicular to the y direction. in quartz, a transverse mode of vibration is obtained when the slice is electrically stimulated in the y direction.7,22
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