... flange ring diameter (法兰圈直径) board hole diameter (镜头版的孔的直径) front lens cell thread (快门装前组镜头的罗纹口径) ...
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board hole diameter
板孔直径
以上为机器翻译结果,长、整句建议使用 人工翻译 。
The size of the hole away from the plate edge should be not less than 40 mm, all the hole diameter should be greater than the bolt diameter, heat bilges cold shrink to fit the board.
孔离板材边缘的尺寸应不少于40mm,所有钻孔直径应大于螺栓直径,以适应板的热胀冷缩。
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