The test indicates that it can satisfy the performance of the system . because of the high data rate 、 large data volume and long - playing storage in the sar , it must have larger data storage and higher speed processing 由于合成孔径雷达( sar )的数据率高,数据量大,存储时间又长,这就要求有很大的存储容量和很高的处理速度。
Once data has been written in dram , charges stored in each capacitor must maintain more than the refresh time so that the information stored in each dram cell can be read out correctly 数据一旦被写进dram ,每个小电容上电荷的存储时间就必须大于dram的刷新脉冲时间,如果由于漏电流致使存储的电荷丢失,就会导致数据读取的误操作。
The results indicate that the inventory control model based on life - cycle function is effective and good performances , such as shortening storage time and decreasing inventory cost , can be got if the model is used 结果表明,使用基于零件寿命函数模型对慢速流动备件进行库存控制,能有效地缩短此类备件的平均存储时间,降低存储成本。
Although it can fulfill the queries and operations on the sequence data , it can not find the sequences or subsequences which have the same or approximately same pattern with the query sequences . it is necessary to extend the capability of the queries to find the hidden knowledge in the database 时间序列数据库描述、存储时间序列数据并提供各种查询操作,通常这些操作都是基于序列元素的值或者时间坐标进行的,无法实现对序列数据库中所蕴含知识的查询。
Through the study of the example of shaxi porphyry body in anhui province , the authors first figured out the storage time of plagioclase phenocrysts , then calculated the nucleation rate and growth rate of the crystals and , on such a basis , established the thermal model for cooling of the hypabyssal magmatic system 本文试图通过对安徽沙溪斑岩体进行实例研究,先求出斜长石斑晶的存储时间,再算得晶体成核速率和生长速率,进而建立起浅成岩浆体系冷却的热模型。