SELT can reduce operators' costs and thereby the customer's subscription cost.

SELT能降低运营商的成本进而是用户的花费。

This white paper described the need for SELT and discussed the trade-off between accuracy and implementation complexity.

本白皮书描述了SELT 的需求，讨论了精确度和实施复杂性之间的权衡。

As a new technology, realization and widespread deployment of SELT would benefit greatly by the development of standards.

作为一个新技术，标准化的进展有助于SELT的实现和广泛应用。

This section considers the impact of accuracy on implementation and the trade-off between performance and SELT complexity.

本节考虑精度对实施的影响，以及SELT复杂性和性能之间的关系。

Because both types of inaccuracy result in increased operator costs, this scenario requires the highest accuracy of SELT measurements and analysis.

由于这两种不准确的结果会增加运营成本，这种情形下要求最高的SELT测试和分析精确度。

This section presents two examples that illustrate the impact of component tolerance on SELT accuracy and the improvements possible via calibration.

本节用两个例子说明元件公差对SELT精确度的影响以及通过校正可能的改进。

Selt diagnosis and fault display functions can detect common faults by itself and give sorted displays , resulting in simplified troubleshooting and maintenance ;

具有自诊断功能和故障显示，可对一些常见的故障进行自行诊断同时进行分类显示，便于用户故障处理和维护；