بيب، بيب، بيب، ما هي الكلمة السرية للضغط على بوق السيارة مرة واحدة، مرتين، وثلاث مرات؟
بحسب إحصاءات مكتب الاتصالات الصيني الصادرة في يونيو 2019، تجاوز عدد السيارات المملوكة في الصين 280 مليون سيارة. في ظل هذا العدد الهائل، يزداد الضغط التنظيمي على قطاع النقل، فالسيارات أجسام متحركة، مما يُصعّب عمل شرطة المرور، وبالتالي تكثر حوادث السير.
المخروط، المعروف أيضًا باسم المخروط الورقي، هو أحد المكونات المهمة في مكبر الصوت.
When an audio signal is input to the speaker, the voice coil vibrates in the magnetic field. Because the voice coil is fixed on the paper cone, the paper cone will vibrate along with it. The vibration of the paper cone forces the air to resonate, making a sound. Therefore, different sound basin materials will […]
أبواق السيارات اليابانية تبدو حادة، أبواق السيارات الأوروبية والأمريكية باهتة وسميكة، أيهما أفضل؟
The car whistle sounds a beep and a beep. In addition, Japanese car horns are mostly dip and the sound is sharp. Most European and American car horns are beeping, dull and louder. Why is that? Which speaker is better? First of all, car horns are divided into electric horns and air horns. Generally, large […]
من وجهة نظر الشركة، هل هي شراء مكونات إلكترونية لصنع PCBA بنفسها، أم العثور مباشرة على شركة لصنع PCBA؟
First, first look at your company’s product needs and your own supply chain situation. If the supply chain you add is very good, it is usually purchased by yourself. So you know the cost and price Second, if your own strength is product development, not the supply chain, it is still recommended to directly find […]
ما مدى أهمية البحث والتطوير لشركات تصنيع PCBA؟
New developments require more complex, larger PCBA and tighter packaging. These requirements challenge our ability to build and test these units. Further, larger boards with smaller components and higher node counts may continue. For example, a design that is currently drawing a circuit board diagram has approximately 116,000 nodes, more than 5,100 components, and more […]
ما هي لوحة الدائرة PCB، لوحة الدائرة PCBA، كيف يختلف الاثنان؟
PCB board refers to the light board that only needs to be manufactured and has no parts. PCBA refers to PCBs that have electronic components, parts on the PCB board, and functional circuit boards after SMT. Our common circuit boards are PCBA. PCB boards can only be seen during the original processing of the manufacturer. […]
ما هو الفرق بين لحام PCBA المزيف واللحام الوهمي؟
False welding refers to the fact that the welding on the surface of the solder joint seems to be successful, but it is not actually welded. Sometimes the lead can be pulled out of the solder joint with a single pull; and the virtual solder is a small amount of solder pillar at the solder […]
كيف يتم حساب عرض أسعار معالجة PCBA في Shenzhen؟
How is Shenzhen PCBA processing quote calculated? Shenzhen PCBA processing quotation is calculated according to the following: ordinary solder joint fee, DIP solder joint fee, manual solder joint fee, adhesive tape fee, labor fee, cleaning fee, packaging fee, transportation fee, comprehensive fee, and then add what should be Profits form the total PCBA quote. PCBA […]
مصنعو PCBA في شنتشن يشتكون: الفنيون يرتكبون أخطاء، مما يؤدي إلى عدد كبير من المنتجات المعيبة وخسارة الملايين
Recently, a circuit board manufacturer in Shenzhen complained that the PCBA boards produced in the workshop were almost full of production lines. The reason was that a lot of bubbles appeared in the tin spots on the recently processed PCBA circuit boards due to errors in the operation of the technicians. The customer received the […]