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发布时间：
2023/10/17 20:12
至于我在前文中提到的多功能家居灯，是在风扇的底盘有一个LED灯，有3挡可调节，灯光均匀柔和不刺眼，晚上开着可作观影灯、氛围灯、睡眠灯使用。据悉，由作为归口单位的评价要求风扇灯》评价标准，已于在全国团体标准信息平台上正式发布。露营除了享受大自然的美景，拍下这些美景也是一件非常有意义的事情。七彩叮当户外风扇的设计考虑到了这一点，它的后面设置了一个氛围灯，并内置了
发布时间：
2023/10/17 20:12
露营怎么能少得了拍照片呢？拍拍日出和夕阳，记录当下的美好。而七彩叮当户外风扇的后面设置了一个氛围灯，内置了三色膜片（落日/极光/晨曦），灯光一开，画面感立刻就出来了，不管天气如何，随手一拍就是大片，露营仪式感瞬间拉满！我家装的这款是欧普新一代风扇灯，采用的是新一代直流变频电机，一级能效。刚收到的时候，感受到了52寸的大，实际装上去之后感觉还好，整个产品的尺寸
发布时间：
2023/10/17 20:12
以往高功率影视灯大都通过增加散热器鳍片及调整风扇大小的方式解决大功率设备的散热问题，导致产品功率越大，体积也越大越重。并且传统灯具所使用的的组合，相当于只是将两个独立的配件进行简单拼接，在散热时更像是简单的风扇匀速吹风，这也间接导致影视灯在散热过程中，会在机体产生不规则运动的空气，形成仿佛液体一样的，附着在影视灯表面，极大影响散热器的效率。来说风扇灯的风量大
发布时间：
2023/10/17 20:12
总的来说，风扇灯百利而仅可能有一害，我还是十分推荐大家选购配合空调使用的，尤其像推出的新一代风扇灯都使用了仿生蜻蜓扇叶技术，不仅灯够柔够亮还护眼，吹风效果效果更是好。按我老婆的话来说，就是恨不得所有房间都装上这种风扇灯。代风扇灯安装方面也极其简单，找了师傅来不到1小时就安装好了两盏灯，师傅说这是他安装过最简单的风扇灯！而且师傅还夸这个风扇灯很稳，完全没有晃动
商机资讯
How to improve the problem of no copper holes in multi-layer PCB circuit boards?
1. Add high-pressure water washing and gel residue removal process for holes prone to producing dust (such as holes with a diameter of less than 0.3mm and 0.3mm).
The signal layer is mainly used to lay wires on printed circuit boards. Protel99SE provides 32 signal layers, including top, bottom, and 30 intermediate layers.
Common structures of soft hard composite panels
Rigid flexible PCB is a new electronic interconnect technology that integrates rigid printed circuit boards (PCBs) and flexible printed circuits (FPCs). It combines the advantages of both, providing more flexible spatial layout capabilities while maintaining the support and stability of electronic components. The following is an overview of the common structures and process flow of soft hard composite boards:
Common power cable technologies! Worth collecting!
Answer: According to their usage, they can be divided into bare wire, insulated wire, heat-resistant wire, shielded wire, power cable, control cable, communication cable, RF cable, etc.
What are the types of insulated wires?
The Development History of Resistors
Resistors are fundamental components in circuits. After testing the conductivity of various materials and discovering the presence of current, early scientists gradually developed the concept of resistance. Scientists have found that copper, gold, and aluminum are excellent conductors with low resistance, while air, mica, and ceramics are considered resistors because they can greatly restrict the flow of current. Although industry insiders have long known about its resistance performance, it was not until 1961 when Otis Boykin created the first inexpensive and reliable resistor, allowing scientists to accurately control the amount of current transmitted to a component, that the reliable resistor we know today was born. With his breakthrough, the resistance of resistors to extreme temperatures and oscillations greatly decreased, ultimately making low-cost production possible. As the US military, IBM, and numerous consumer electronics manufacturers place orders to purchase Boykin's new resistors, their presence is ubiquitous from household appliances, computers to missiles.
How to choose resistors in circuit design?
Resistors are one of the most commonly used components in electronic products, and almost any electronic product will have resistors inside. Resistors can be used as voltage dividers, splitters, and load resistors in circuits; It can form filters and delay circuits together with capacitors; Used as a sampling resistor in power or control circuits; Used as a bias resistor in semiconductor tube circuits to determine the operating point; Use resistors with special properties, such as variable resistors and thermistors, to prevent surge voltage, suppress surge current, and achieve over temperature protection. Resistors are the most common and essential components in circuits. The correct selection and use of resistors are crucial for the stable operation and reliability of products.
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