Empty table cells indicate events that should not occur in particular states.

空的表单元格表示在特定状态下不应该发生特定的事件。

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Also note that the results are each returned within HTML TD elements, or table cells.

此外，还要注意，每个返回的结果都包含在HTML的TD元素或单元格中。

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All of the table cells are wrapped within a table row (TR), which in turn is wrapped in a DIV element.

所有单元格都包围在表行中(TR)，而表行又被DIV元素包围。

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His company even developed a device that is mounted to the operating table to help surgeons inject the stem cells.

CNN: FDA approves human embryonic stem cell study