很多书写用字母(比如：法语)需要上标或下标才能正确展示。在这些情况下，SUB和SUP元素应该用来标记文本。
Many scripts (e. g., French) require superscripts or subscripts for proper rendering. The sub and sup elements should be used to markup text in these cases.
将仪表安装到测量位置上，接通电源，通过表壳体上标牌下的调零、调满螺钉对零点和满度进行调整。
After installation and supplying power, you can adjust the Zero and full scale according the label on the housing.
将仪表安装到测量位置上，接通电源，通过表壳体上标牌下的调零、调满螺钉对零点和满度进行调整。
After installation and supplying power, you can adjust the Zero and full scale according the label on the housing.
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