But such places often come with lots of dust. And the panels have to stay dust-free: just a seventh of an ounce of dust per square yard of panel can decrease solar power conversion by 40 percent.
但此类地点通常有着大量的灰尘,而电池板必须远离灰尘:电池板上每个正方形区块只要有七分之一盎司的灰尘,就能减少40%的太阳能转化率。
For example, the existing YAML libraries come with adequate, but not great, conversion tools for moving between XML and YAML.
例如,现有的yaml库附带了用于在xml和yaml之间进行转换的充足的、但不是最佳的转换工具。
This section will deal with conversion issues that come up with DDL statements, like table and index creation statements.
本节讨论ddl语句(比如表和索引创建语句)面对的转换问题。
应用推荐