根据国家睡眠障碍研究中心的数据,美国成年人中的百分之三十到四十在一年之内有过间歇性失眠经历,百分之十到十五患有长期失眠症状,神经过敏的人可是相当不少。
Ten to 15 percent report chronic symptoms. That’s a lot of irritablenerves.
但是,当尝试连接到数据库时,在 db2diag.log 中可能间歇地出现如下错误消息。
However, the following message occurs intermittently in the db2diag.log when trying to connect to the database.
导出了平面凸轮齿轮型间歇机构有关结构尺寸的求解式,给出了合理的产品系列及其数据。
The expression of structural dimension for gear-planar cam indexing mechanism are derived, reasonable product series and data are given.
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