open frame

• 工程和电子领域使用的术语，指开放式或无完整外壳的结构或机架，常用于工业或定制安装中容纳组件。

A term used in engineering and electronics to describe a structure or chassis that is exposed or lacks a full enclosure, often used for mounting components in industrial or custom setups.

1. Bowling termB2informal

   A frame in bowling where the player fails to knock down all ten pins in two rolls, resulting in no strike or spare.

   开轮

   • He had an open frame in the third round, which hurt his score.
   • Avoiding open frames is key to a high bowling average.
   • She was disappointed after three consecutive open frames.

2. Structural designC1formal

   A type of architectural or engineering structure that lacks solid walls, often using beams and columns.

   开放框架

   • The building features an open frame design for better ventilation.
   • Open frame construction is common in modern warehouses.
   • The bridge uses an open frame to reduce weight.

3. Electronics or hardwareC1formal

   A chassis or enclosure without side panels, used for mounting electronic components.

   开放式机架

   • The server is housed in an open frame rack.
   • Open frame power supplies are easier to cool.
   • He built a custom PC using an open frame case.