This change must be made at least one TTL period before you intend to change the address, because computers get the TTL along with the name-to-IP mapping.

在您打算更改地址之前，必须提前至少1个TTL时间段执行更改，因为计算机将把TTL以及名称缓存到ip映射。

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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。

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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(TTL BL)模式。

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When connected to the Nikon 1 accessory port of the V2, the SB-N7 will provide opportunities to explore lighting options including i-TTL support.

ENGADGET: Nikon 1 V2 unveiled: 14.2 megapixel ILC shoots 15fps stills for $899.95 in November

The camera also features a Nikon 1 i-TTL hot shoe port, affording the use of optional lighting and camera accessories with the Nikon 1 V2.

ENGADGET: Nikon 1 V2 unveiled: 14.2 megapixel ILC shoots 15fps stills for $899.95 in November

Other differences between the FZ30 and FZ50 include the addition of SDHC card support, a TTL Flash hot-shoe, 16:9 shooting mode, and the so-called Venus Engine III image processor, but the elimination of TIFF file support and several thousand pixels from the 2.0-inch LCD.

ENGADGET: Panasonic's Lumix DMC-FZ50 10 megapixel shooter