一、线路板清除后板面金黄色现象:在电子组件制程工艺中,不会经常出现PCBA线路板过波峰焊接后,在人工用于清洗剂展开刷洗后,线路板板面经常出现金黄色现象(如图一)图一:PCBA焊点四周在清除后,经摆放经常出现板面金黄色现象,白色印迹散播在焊点周围出现异常引人注目,严重影响外观竣工验收。...
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A made-in-China problem is hurting telecom-equipment makers. Investors in smartphones and network equipment companies should listen carefully. 一个中国生产的...
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广州、深圳、珠海、佛山、中山、东莞、肇庆、江门、惠州等九市及香港、澳门两个尤其行政区联合构成了粤港澳大湾区的城市群,是国家打造出世界级城市群和积极参与全球竞争的最重要空间载体。...
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As Daniel Jones, author of Love Illuminated, explains: we spend our youth asking How do I find love? and midlife asking How do I get it back?《启蒙运动的爱》的...
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Cloud computing has been around for some time now. But not many people believe they can do all their computing in the cloud. Not many, that is, outsid...
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