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本教程适用版本：WPS 365 点击免费使用 对于老师来说，利用Excel表格统计学生成绩数据是常有的事。那么当统计数据时，怎样让数据都除以同一个固定单元格的数值，今天我们就以成绩统计表为例，来教大家这个小技巧，具体怎么操作呢，一起来学习一下吧。 首先，将所占比例下的单元格设置为百分比格式，在E2单元格内，输入=D2/D8，如下图所示： >>免费升级到企业版，赠超大存储空间 单击回车后，我们看到所占比例就计算出来了，但是下拉单元格填充框时，却显示计算错误： >>免费升级到企业版，赠超大存储空间 这时，我们需要在D8的前面，分别加一个符号$，此符号在英文状态下按快捷键Ctrl+4，即可输入： >>免费升级到企业版，赠超大存储空间 单击回车，显示出百分比后，然后下拉单元格填充框，如下图所示： >>免费升级到企业版，赠超大存储空间 然后我们看到，数据所占比例就已经全部计算出来了，完成了我们让数据都除以同一个固定单元格的数值的要求： >>免费升级到企业版，赠超大存储空间 那么，在Excel表格当中，让数据都除以同一个固定单元格的数值的方法，是不是非常简单呢，你学会了吗？ Keyword: wps下载

In our last article on how to connect end devices beyond copper Ethernet’s 100 meter range, we looked at various solutions to the dilemma of needing to connect an end device that’s just a little too far from the nearest telecommunications room (TR), including building a new TR, the use of an extender device, fiber or extended-distance cabling. While the use of extended-distance cabling is technically a non-standard-compliant approach, it is the cheapest and easiest option, which has it gaining in popularity. That’s why many vendors have introduced new cable designs and/or are providing performance information for existing cables in beyond 100m deployments. Since you might be asking just how…

In a previous blog, we covered what to do when you need to connect a device that is located beyond the 100-meter distance requirement and described four ways to address the problem—a new TR, the use of an extender device, extended-reach copper cable and fiber. When using fiber to go beyond the 100m distance, devices that do not include a fiber input/output require some form of media conversion, and if that device also needs power over Ethernet (PoE), it takes a PoE media converter. Devices that include a fiber connection and power terminals for DC power can connect via hybrid copper-fiber cable, sometimes referred to as composite cable. This does…

When it comes to copper testing, we talk a lot about category balanced twisted-pair copper cabling like Category 6, Category 6A and Category 8. And although this cabling type is widely deployed to support everything Ethernet transmission of voice, data and video, that doesn’t mean it’s the only copper cabling you could encounter. Coaxial cabling (sometimes just “coax” for short) has long been used for distribution of data and video signals, and it was one of the first media to support Ethernet with 10BASE2 and 10BASE5 that transmitted 10 Mb/s up to 185 meters or 500 meters, respectively. The term “coaxial” refers the fact that the cable’s center conductor and shield share the…

While the smart people who install, test and certify network cabling plants know the importance of meeting standards performance parameters and ensuring application support, even the best of us can make mistakes that adversely impact the bottom line and customer satisfaction. Let’s take a look at the #9 Dumb Thing that smart people do when testing network cabling systems—relying on a duplex tester for certifying MPO trunks. Now the Challenging Norm With the growth of big data, virtualization and higher bandwidth speeds in data center fiber backbone links to 40 and even 100 Gbps, most data centers today are standardizing on multi-fiber push-on (MPO) connector solutions. While required testing of…

Driven by large hyperscale and cloud data center providers, advancements in signaling and transceiver technology have led to the development of next-generation transmission speeds. There are now multiple options available for 400G Ethernet applications over multimode and single-mode fiber with more on the horizon. And it doesn’t stop there—big players like Google, Facebook, and Microsoft are driving innovation to support 800 Gig and 1.6 Terabit applications, and the IEEE Beyond 400 Gig Ethernet Study Group is already defining objectives. 400G switch port shipments by market segment from 2018 to 2024. While most enterprise data centers aren’t yet deploying 400Gb Ethernet, the big players are already adopting these next-gen speeds in…

Retention ponds are becoming increasingly required when it comes to city planning and development. A wet pond, or retention pond, is simply a basin that catches the water runoff from higher elevation surfaces. They are established to help limit flooding during torrential rainfall, and to help remove the pollutants from the surrounding environment. Retention ponds are becoming very important to city development and construction sites because the overflow from a city’s storm drain system needs an appropriate place to go instead of flooding into buildings, parking lots, and houses. Retention ponds are established where new buildings, roads, and parking lots are being built. The waste and pollutants from rainfall often…

With a team of dedicated engineers, machinists, designers and support staff, we’re honored to be named, along with our client Gate Labs, a winner of the BUILD Magazine Engineering Excellence Awards. The Engineering Excellence Awards 2017 recognizes various engineering disciplines and rewards firms and individuals for their often unheralded hard work. Star Rapid and Gate Labs were named ‘Most Innovative Access Control Manufacturer and Best Home Access Solution’ for the product development and rapid prototyping of the Gate Smart Lock. “These awards showcase both the individuals and firms from across the engineering market who have achieved phenomenal success through their work,” said Steve Simpson, the Engineering Excellence Awards coordinator. “Congratulations…

Material Ceramics Nozzle type Inert balls Operating temperature +1000°C Analogue for Munters, Christy Catalytics, Koch-Glitsch, AMACS, Ultimo Engineers, MTE, Pall Ring Company, НКС DOLSIN, MACH Engineering LLC Producer BTS Engineering AL2O3 content 18-22% Application очистки газов, насадочных колонн, декарбонизатора, десорбера, абсорбера, дегидратации, дистиляции, ректификации, сатурации воды Diameter, mm 13 Description Be mainly used in the petroleum, chemical industry, fertilizers,natural gas, environmental protection and other industries. It plays a role of supporting and compacting the packing of the tower. Inert Ceramic ball are the most widely used support media in the world because of their excellent consistence and reliability. Products to these specifications are manufactured from very high quality chemical-porcelain clay…

People in the grinding industry may know that the application of alumina balls has the problem of spheroid breakage. This problem has become an obstacle in the popularization of alumina ceramic balls. How can we solve this problem? First of all, in the damage rate of alumina balls, in order to improve the material properties of ceramic balls, the damage rate of balls and balls is improved, and at the same time, the wear resistance and impact resistance of the alumina ball grinding process are reduced. Sliding impact and conflict can improve performance. In addition, two methods of aluminum ball press forming and roll press forming are also controlled. By…