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。
2
Most plain text messages do not consist of a number of bytes that completely fill blocks.
大部分纯文字讯息并非由一些刚好完全填满各区块的位元组构成。
3
There are many hydraulic fill projects on the overbank flood plain near river and sea. These projects not only utilize shallows-tidal-flat area but also benefit to dredge the waterways.