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What are the sensors used underwater?

2019-02-28

The sensors are used underwater: Common underwater sensors: Water temperature sensor, water depth sensor, velocity sensor and Combined water quality sensor; Displacement sensors : laser displacement sensor, eddy current displacement sensor.

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What does “RCD protected” mean on an electrical fuse switch?

2019-02-28

RCD protected means " Residual Current protective Device", as we can see from the full name, which is a kind of protective device;

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What is the advantage of a laser cutting machine?

2019-02-27

The advantages of a laser cutting machine: 1)Pretty level cutting; 2)High cutting precision and speed; 3)Operation controlled by the computer; Be able to cut any complex graphs and graphics accurate.

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What is the difference between a gasoline generator and diesel generator?

2019-02-27

The three differences between gasoline generator( petrol generator) and diesel generator:

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Why are OLED displays flexible whereas LED displays are not?

2019-02-27

Well, it depends on OLED display itself. After all, OLED display is flexible in nature, which is able to bend and fold freely.

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Does a CCTV system work without a hard disk?

2019-02-26

Yeah. A CCTV system should be able to work without a hard disk. Because its data can be stored in the server or Cloud.

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Are medical or airport X-ray machines more powerful?

2019-02-26

Comparing with airport X-ray machine, medical X-ray machine is obviously more powerful, which depends on their different practical requirements.

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How is IoT related to electronics and communication systems?

2019-02-26

In fact, the IoT’s software platform is based on the hierarchical communication system, including data-aware system, middleware system, network operating system, IoT management system and information center management system, etc.

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How many transistors have to fail in order to make a CPU unusable?

2019-02-25

Generally, as long as 2% transistors are failed in a CPU, the CPU will be unusable.

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Why are some people against led street lights?

2019-02-25

The research online shows that colour temperature and brightness are the mainly reason why people against LED street lights. In other words, people have requirements for the street lights’ color and brightness.

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