The unavailability of apparatus rendered the experiment rather difficult.
由于无法弄到实验器材，实验进展起来非常困难。
Except for unavailability of quotas, we normally process new applications within five working days.
除未有配额的申请外，新申请一般需时5个工作天处理。
Now these are availability and unavailability.
现在，这些是有效性和无效性。
No supplementary class in case of class cancellation due to weather condition or personal unavailability.
如因天气或个人问题而取消或缺席之课堂，一律不作补堂。
A period of financial difficulty characterized by tight money and unavailability of credit.
经济收缩以贷钱困难和信用无效为特征的财政困难时期。
Unavailability of resources promised by the functional managers, cost overruns, and changes in customer requirements
职能经理许诺的资源未到位，成本超支，客户需求发生变化
Unavailability of the data source, for example when a server is down
数据源不可用，如服务器停机时
Thus unavailability of data source will not obstruct execution of queries.
因此，数据源的不可用性将不会妨碍查询的执行。
unavailability of exportable surplus.
无出口剩余
The main cause of this inattention is the unavailability of a proper means to express them.
这种疏忽得主要原因是 没有合适得方法表达它们。
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