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> 声呐
"声呐"相关考试题目
1.
声呐系统不包括（）。
2.
When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow growing animals were ea...
3.
声呐属于 侦察设备
4.
When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow growing animals were ea...
5.
声呐有哪两种？
6.
（）不是主动式声呐的特点。
7.
（）不是主动式声呐的特点。
8.
声呐的英文缩写是（）。
9.
声呐的发明原理是（）？
10.
现代潜艇的被动声呐，只能测向，不能测距。___
11.
声呐在冬季的作用距离比夏季远。 （ ）
12.
声呐有哪两种？
13.
()不是主动式声呐的特点。
14.
【名词解释】潜艇声呐
15.
）的测量主要借助测扫声呐来获取。
16.
根据频率划分,侧扫声呐分为?
17.
超声波在海水中的传播速度约1500 m/s，用声呐竖直向海底发射超声波，经6 s收到海底返回的声波，则该处海底深多少m ？
18.
声呐的发明原理是( )?
19.
C Zanzibar，Tanzania--Hundreds of dead dolphins were washed up on Friday along the shore of a popular tourist place on Tanzania’s northern coast．Scientists have ruled out poisoning． It was not immedia...
20.
你知道什么是声呐？它有哪些应用？
21.
声呐的工作原理是（）。
22.
一些我们人看不见的光、听不到的声音在生活中有广泛的应用，如电视机的遥控器是利用______工作的，声呐是利用______工作的．
23.
【名词解释】声呐浮标
24.
“声呐”是利用（ ）
25.
以下哪种声呐不是利用混响的？
26.
声呐是声音的导航与测距
27.
【名词解释】声呐
28.
声呐测距以 为媒介（ ）
29.
Everyone faces challenges in their life, but some are more important than others. Daniel Kish had serious problems with his eyes when he was born. And doctors took away both of his eyes before he was ...
30.
以下哪些特点属于机载声呐的特点？
31.
声呐装置由（）等组成。
32.
声呐可用于
33.
()不是主动式声呐的特点。
34.
（）不是主动式声呐的特点。
35.
When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow growing animals were ea...
36.
【名词解释】渔用声呐
37.
When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow growing animals were ea...
38.
CZanzibar，Tanzania--Hundreds of dead dolphins were washed up on Friday along the shore of a popular tourist place on Tanzania’s northern coast．Scientists have ruled out poisoning． It was not immediate...
39.
声呐属于（）侦察技术
40.
被动式声呐的特点是
41.
水下传感器其主要设备是“声呐”。大洋中的动物搜寻猎物靠的就是声呐,人类发明“声呐”就是通过鲸和海豚的原理发明的。
42.
【名词解释】水面舰艇声呐
43.
声呐属于（）侦察技术
44.
声呐的原理与以下哪一种生物相似（）。
45.
混响是（ ）声呐特有的干扰
46.
二战中声呐的作用距离相当近，主要的原因是：（）。
47.
声呐分为主动声呐和被动声呐，以下不是声呐组成部分的是（）。
48.
声呐的发明原理是( )?
49.
When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow growing animals were ea...
