Computers cache the name-to-IP mapping for a certain period of time, known as the time to live (TTL), to reduce overall response time.
计算机将这个名称缓存到IP映射一段时间，这个时间段称为timetolive (ttl)，以减少总响应时间。
For instance, the inventory response for the parts from an automotive dealership includes a Time-To-Live (TTL) element.
比方说，汽车零售商的零件目录响应中包含一个Time - To - Live (ttl)元素。
Below is an example of setting the TTL value to 120 seconds for key "a, key."
下面是为键“a,key ”设置ttl值为120秒的示例。
If you receive a packet that you suspect is spoofed, try to determine the real Time-to-Live (TTL) of the packet and compare it to the TTL of the packet you received.
如果收到一个可疑的数据包，要尝试判断它真正的Time - to - Live (ttl)，并将其与所接收包的TTL进行比较。
A new tester for the function of TTL digital circuit based on MCS-51 single chip computer is described.
本文介绍了一种以MCS—51单片机为基础的TTL数字电路逻辑功能测试仪。
And, the time to live or TTL, a value which determines how long the packet lives on the wire before it's discarded.
还要计算数据包在网上存留的时间(ttl)。TTL的值表明数据包在被丢弃之前，在线路中存活的时间。
Sets the IP_TTL socket option. TTL stands for "Time to Live," but in this context it specifies the number of IP hops that a packet is allowed to go through.
设置套接字的IP _TTL选项，TTL表示“存活时间”，但是在这个上下文环境中，特指一个数据包允许经过的IP跳数。
This manostat can serve as a TTL circuit or MCU circuitry of power sources.
本稳压电源可作为TTL电路或单片机电路的电源。
Nikon Speedlights let the photographer choose between two different TTL modes: a plain TTL mode, and the TTL BaLanced fill (TTL BL) mode.
尼康高速闪光灯有两种不同的TTL模式：普通ttl模式和TTL均衡补充(TTLBL)模式。
The T5420 is a Digital-Pneumatic Transducer, compatible with most digital systems using TTL and CMOS Logic.
该T5420是一个数字气压传感器，使用兼容TTL和CMOS逻辑大多数数字系统。
The TTL value is reported as the number of routing nodes that can forward a packet before it is discarded.
报告的ttl值是一个数据包在被丢弃之前可以转发的路由节点数。
The amount to use is a judgement call, which is one of the things that make using TTL flashing difficult in fair and bright light.
而使用负的多少这个量，也是在明亮环境中TTL模式应用的一件难事。
The amount to use is a judgement call, which is one of the things that make using TTL flashing difficult in fair and bright light.
而使用负的多少这个量，也是在明亮环境中TTL模式应用的一件难事。
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