If signal averaging technology was used in our CO2 DIAL system, then would improved the sensitivity of measurement clearly and could meet the demand of development.

运用信号平均技术之后，本课题研制的系统其测量灵敏度完全可以满足设计要求。

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DTMF is a reliable and mature technology. Because it can provide the higher dialing speed, it has rapidly replaced the dial pulsing signal which the traditional dial telephone used.

DTMF是一种可靠而成熟的通信技术，由于它可以提供更高的拨号速率，迅速取代了传统转盘式电话机使用的拨号脉冲信号。

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Based on much literature, the principle of the DIAL system in detecting chemicals and the various factors that influence the laser signal intensity are investigated in detail in this paper.

本文在参考了大量文献的基础上，对差分吸收激光雷达探测化学毒剂的原理进行了深入分析，对影响激光回波强度的各种因素进行了详细的讨论。

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Using small satellite phones to dial in for a lower resolution signal seemed like an option but even that was not assured.

CNN: Miles O'Brien's hurricane blog

CHOI's signal may have faded from the dial.

ECONOMIST: Free speech in Canada

That signal means a giant antenna in California heard Messenger's dial tone, systems engineer Michael Paul said, and the spacecraft was amazingly on target.

NPR: NASA Probe Glimpses Unseen Side of Mercury