1.
The first signal did not include the color yellow for caution, but that was later added within a few years.
第一次信号中不包括用于“注意”的黄色，黄色是以后几年内后加的。
2.
His father served in signal corps during the FirstWorld War.
他父亲在第一次世界大战中在一个信号团工作。
3.
picked up our first broadcasts of the 1920's,
接收到了我们二十世纪二十年代的第一次广播信号，
4.
He picked a winning number on the first draw.
他第一次便抽到一个中奖号码。
5.
A lighthouse beacon that occults every45seconds.
每隔45秒灯塔信号灭一次
6.
A Suboptimal Signal Detection Algorithm with Very Low Complexity in VBLAST Systems
一种次优的低复杂度VBLAST信号检测算法
7.
Jean was really lucky that she picked a winning number on the first draw.
简真是幸运之极,她第一次便抽到一个中奖号码。
8.
Once, he went aloft, and the rope broke, and they caught him shrieking;
第一次，把他吊了上去，绳子断了，他尖号着被抓
9.
First known in the ninth century, the horn was used by herdsmen to call cattle,
第一次出现是在九世纪。号角是牧人用来放牛的，
10.
That was the code name to my first field exercise in Qatar.
那可是我在卡塔尔第一次野外训练时的代号
11.
Wang Nan was the No.１ seed in the table-tennis championship.
王楠是这次乒乓球锦标赛中的第一号种子选手。
12.
Your letter arrived by the first delivery.
你的信在第一次投递时送达。
13.
The first message is expected to arrive at 7 o' clock this evening.
第一次信息预计在今晚7点到达。
14.
A first-class letter should arrive the following day.
按第一类邮件投递的信应於次日到达。
15.
Discovery landed after safely crossing the continent in the first coast-to-coast reentry since the Columbia disaster.
自哥伦比亚号失事以来，这是发现号第一次安全重返大气层。
16.
This is the first of three appearances by the Romulans in Voyager episodes.
这是《航海家号》剧集里罗姆兰人出现三次中的第一次。
17.
Output signals are recorded by a digital printer every hour.
每小时由一个数字打印机记录一次输出信号。
18.
I'd like to get this letter off by the first post.
我想将这封信在邮局第一次收信时寄出去。