time base accuracy

Dividing the case base or cases into different granularity whit different size, to improve the speed and efficiency of dividing the quotient space for user textual case and the retrieval accuracy, and reduce the retrieval time-consuming.

将案例库划分为不同的粒度，以提高为用户文本案例划分商空间的速度和效率，同时提高检索的准确率，降低检索的时间耗费。通过实验验证，基于粒度的方法具有较好检索效果。

The results indicated that the use of temporal arterial pressure pulse wave can assure the accuracy of the inflation time, avoid the potential danger existed in earlobe plethysmogram and provide a reliable base for automatic control of inflation time in ECP.

结果表明，采用颞脉压力波可以保证反搏充气时间的准确性，避免了耳脉波存在的潜在危险性，并为反搏充气时间的自动控制提供了安全可靠的依据。

A phasor measurement device was developed by using the time base of high accuracy supplied by the global positioning system ( GPS).

利用GPS技术提供的高精度标准时基，研制了电力系统相角变送器，实现了相角直接精确测量。

Quartz crystal time base for accuracy.

石英晶体时基的准确性.