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2013-05-23 12:21
求翻译：4.1.2 Coding. The date of manufacture, the manufacturer's symbol, and an indication of the direction of air flow (arrow and light color for brake servo side and dark color for engine side) shall be shown at a suitable position on the check valve. All markings shall be readily legible and permanent.是什么意思？ 待解决
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4.1.2 Coding. The date of manufacture, the manufacturer's symbol, and an indication of the direction of air flow (arrow and light color for brake servo side and dark color for engine side) shall be shown at a suitable position on the check valve. All markings shall be readily legible and permanent.
问题补充： |
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