... pressure responsive device 感压装置，压敏装置 pressure retaining vessel 压力壳，密闭壳 pressure reversal 压力梯度反向 ...
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Materials for external attachments and vessel support welded directly to the pressure retaining parts shall be similar material as the pressure parts.
直接焊接到压力保持部件上的外部配件及容器支架的材料应与压力部件相同。
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