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Engine Start Motor 发动机启动马达

The starter motor is an electric motor that turns over or “cranks” the engine to start. It consists of a powerful DC (Direct Current) electric motor and the starter solenoid that is attached to the motor. The starter motor is responsible for turning the engine over during ignition and allowing everything else to happen. 发动机启动马达是使发动机翻转或“转动”发动机以...

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Stereographic Projection 球面投影

通过球心的面在赤平面上的投影称为大圆,未通过球心的面在赤平面上的投影称为小圆。 由于构造特点各不相同,为了清楚反映构造起见,采用两种不同的投影方法: 一是面的极点图解,即π图解,就是用面的法线作为点来投影, 例如圆柱状褶皱的褶皱面的极点成一个大圆环带通过极点画出最合适的大圆,称为π圆,π圆的极点就是π轴。 另一种是面的大圆图解,即β图解,把所测量的每个面作为大圆来投影; 如果将圆柱状褶皱的褶皱面投影,所有大圆轨迹相交于一点,称为β轴,代表褶皱轴的产状。

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Dào Dé Jīng 道德经

The Dào that can be told of is not an Unvarying Way; The names that can be named are not unvarying names. It was from the Nameless that Heaven and Earth sprang; The named is but the mother that rears the ten thousand creatures, each after its kind. Truly, ‘Only he that rids himself forever of desire can see the Secret Essences’; He that has neve...

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Logic Gate 门电路

A logic gate is an idealized model of computation or physical electronic device implementing a Boolean function, a logical operation performed on one or more binary inputs that produces a single binary output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or i...

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Microservices 微服务

Microservice architecture – a variant of the service-oriented architecture (SOA) structural style – arranges an application as a collection of loosely coupled services. In a microservices architecture, services are fine-grained and the protocols are lightweight. A consensus view has evolved over time in the industry. Some of the defining charac...

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CPU 中央处理器

A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuitry within a computer that executes instructions that make up a computer program. The CPU performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program. This c...

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Gas Station 加油站

A gas station, also known as a filling station, fueling station, service station or petrol station is a facility which sells fuel and lubricants for motor vehicles. The most common fuels sold are gasoline (petrol) or diesel fuel. Many gas stations have a convenience store close to the pumps, to make extra earnings. Some have tunnel car washs. ...

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Formulas 数学公式 1948-1994

1948 \[H(S) \leqslant m(S) \leqslant H(S) + 1\] The mathematician Claude Shannon introduced the entropy in information theory in 1948. Entropy in information theory can be defined as the expected number of bits of information contained in an event. For instance, tossing a fair coin has the entropy of 1. It is because of the probability of havi...

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