For areas where the film density through the weld varies by more than from the density through the penetrameter, an additional penetrameter shall be used for those areas.
当焊缝区域底片黑
超过透计处黑时，应在该处另加透计。
For areas where the film density through the weld varies by more than from the density through the penetrameter, an additional penetrameter shall be used for those areas.
当焊缝区域底片黑超过透计处黑时，应在该处另加透计。
声
：以上例句、词性
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