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求一份英文资料,关于雷达原理方面的
答:
The radar uses multiple pulses since the power returned by a meteorological target varies
from
pulse to pulse. This is an unknown value of the radar, but it is one that is directly calculated. Pt: Peak power
transmitted
by the radar. This is a known value of the radar. It is important...
求高中英语第二册(上)Unit7教案
答:
What can you learn
from
it? Q1: Do you remember what it means? Q2: In what ways is AIDS
transmitted
? II. Speaking 1. Pre-speaking 1) Do you agree that getting AIDS is a personal problem? Why or why not? (Through these questions— Raise the idea of social problem and come ...
ping的相关命令
答:
2008 bytes
from
129.35.34.234: icmp_seq=4 ttl=255 time=20 ms2008 bytes from 129.35.34.234: icmp_seq=5 ttl=255 time=19 ms2008 bytes from 129.35.34.234: icmp_seq=6 ttl=255 time=19 ms^C---opus.austin.century com PING Statistics---7.packets
transmitted
,7 packets received,0% packet los...
英语高手来答几道选择题
答:
1.选D.cope with 是应付,应对,处理的,对付的意思。本句意思是:这个医生知道怎样处理这样的突发事件。2.B。accuse sb.of 指控某人...本句意思是除非你有证据,否则你指控一个人犯罪是错误的。3.D。thoroughly 意思是“彻底地”修理工彻底地检查汽车发动机但是没有发现毛病。4.C。汤姆未经父母允...
请求大家帮忙翻译几段英语(英译中、汽车英语),谢谢...有高悬赏分_百度...
答:
8. The most familiar combinationis the reciprocating,spark-ignited,gasoline engine,shown in Fig.1-1a. The modern automobile is usually driven by a water-cooled,piston-type internal combustion engine,mounted in the front of the automobile ; its power may be
transmitted
either to the ...
Linux常用命令之ping命令详解和使用例子
答:
64 bytes
from
192.168.120.1: icmp_seq=5 ttl=255 time=1.88 ms/pp--- 192.168.120.1 ping statistics --- 5 packets
transmitted
, 5 received, 0% packet loss, time 4000ms rtt min/avg/max/mdev = 1.682/1.880/2.020/0.129 ms 实例4:ping指定次数 命令:ping -c...
科普英语的内容?
答:
not all chemical signals
transmitted
via the VNO quality as pheromones. For example,garter snakes detect a chemical signal
from
earthworms—one of their favorite foods—via the VNO, and they use this signal to track their prey.--- ...
什么叫世界水日?
答:
5、The ceremony was
transmitted
live by satellite to over fifty countries 典礼通过卫星向五十多个国家进行了实况转播。 6、Fifty pounds is the best I can offer you 我顶多出五十英镑。 7、I'd say he was about fifty 我猜他五十岁上下。 8、Roughly speaking, we receive about fifty letters a week...
多普勒脉冲雷达是怎么回事?
答:
多普勒雷达就是利用多普勒效应进行定位,测速,测距等工作的雷达。所谓多普勒效应就是,当声音,光和无线电波等振动源与观测者以相对速度V相对运动时,观测者所收到的振动频率与振动源所发出的频率有所不同。因为这一现象是奥地利科学家多普勒最早发现的,所以称之为多普勒效应。由多普勒效应所形成的频率变化...
GRE真题考试阅读部分关键句131-140英文原句
答:
135. That sex ratio will be favored which maximizes the number of descendants an individual will have and hence the number of gene copies
transmitted
.136. Temporary shortages do occur, but Simon and other boomsters(兴旺论者) argue that as long as government doesn’t interfere...
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