1·光照贴图数组的大小（0～254）。
Size of the lightmaps array (0 to 254).
2·所以那是254乘以10的-9次方米。
So that's 254 times 10 to the -9 meters.
3·目前共有254中颜色可以选择。
Currently there are 254 colors to choose from.
4·是的，这是沈阳—北京254次快车。
Yes, it is the Shenyang - Beijing express No. 254.
5·我现在得付帐了。姓名是杰克·伦敦，254房间。
I have to pay my bill now. The name is Jack London. Room 254.
6·我想买一个茶壶，在网上搜索可得到254，000，000个结果。
We want to buy a pot. Search on "pottery" and get 254, 000, 000 results.
7·方法：150例克罗恩病患者和254例正常对照人群纳入此项研究。
A total of 150 patients with CD and 254 controls were included in this study.
8·POWER5 系统必须具有最多 254 个分区，从 1 到 254 进行编号。
The POWER5 systems must have a maximum of 254 partitions, numbered 1 through 254.
9·我们有一个紫外灯在这里，波长集中在254纳米处。
We have a UV lamp right here, which is centered at a wavelength of 254 nanometers.
10·方法用扫描电镜观察了254只豚鼠的耳蜗。
Methods The cochleas from 254 guinea pigs were observed under scanning electron microscope.