The Four Thirds System standardizes the diameter of the lens mount, the size of the image circle, the flange-focal distance, and more.
英
美
- 四三系统标准化了镜头接口直径，传感器的尺寸，法兰距离，等等*。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
