As a result, the engine needed to read many rows of data and apply the final filters using the actual row data, even though indexes of the filter columns were available.
结果,该引擎必须读取很多数据行然后使用实际行数据应用最终过滤,即使过滤列的索引可用。
To add one or more data filters, click the add button to add a new row of data filter criteria.
要想添加一个或多个数据过滤器,应该单击add按钮以添加新的数据过滤器条件行。
For each row that satisfies the filter condition, the database server applies hash function to the key and proves the hash table to find a match.
在满足筛选器条件的每个行中,数据库服务器将对键应用哈希函数,并探测哈希表以查找匹配的键值。
These conclusions are valuable to design hot gas ceramic filter and study on the performance of multi row and multi level ceramic filter candles.
这些结果对合理设计高温陶瓷过滤器及深入研究多层多排陶瓷滤管的过滤性能有重要价值。
In order to remove the positive impulse noise, a nonlinear filter (RCF) based on row and column filtering is presented and its filtering and detail protection properties are analyzed in the paper.
本文针对数字图像中出现的正向脉冲噪声,提出了基于行列处理消除正向脉冲噪声的非线性滤波器(RCF),并分析了它的滤波和细节保护特性。
It is shown that the filter presented in the paper has the ability of effective removing the positive impulse noise and better protection for edges and details with simple row and column processing.
实验表明基于行列处理的非线性滤波器通过简单的行列处理,不但能有效消除正向脉冲噪声,而且对图像边缘和细节具有较强的保护能力。
If there is a damper, such as the export side in the row by putting a filter or a limiter, will promote the pump fluid through them.
如果有一个阻尼器,比如在排出口侧放一个滤网或一个限制器,泵则会推动流体通过它们。
The utility model adopts the single row rolls and a filtering mesh belt wrapping on the roll to filter and dewater, so the dewatering area is large and the energy consumption is low.
本实用新型采用单排辊,过滤网带缠绕 于辊子上压滤脱水,脱水面积大,能耗低。
The utility model adopts the single row rolls and a filtering mesh belt wrapping on the roll to filter and dewater, so the dewatering area is large and the energy consumption is low.
本实用新型采用单排辊,过滤网带缠绕 于辊子上压滤脱水,脱水面积大,能耗低。
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