coke booster
追补焦 split coke
补充焦 coke booster
增补焦 coke booster
补充焦炭 extra coke
补充煤焦 extra coke
聚焦补偿技术 Advanced Intelligent Tile
光学补偿变焦透镜 Optically Compensated Zoom Lens
补偿主焦聚馈电 offset prime focus feed
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