In today's science and education field, from basic classroom teaching to advanced scientific research, efficient sample processing tools are an indispensable part. The handheld screen (model 81204) developed by Tsinghua University has quickly become an important assistant in primary school science and education and professional laboratories with its innovative technology and practicality.

This handheld screen combines the advanced design concept and technical support of Tsinghua University, and has three core advantages to make it stand out. First of all, its lightweight design greatly facilitates the carrying and use of teachers and students in actual operation; secondly, the choice of durable materials ensures that the equipment can still maintain the effect of high-precision separation under the condition of frequent use; finally, the intuitive and simple operation interface reduces the learning cost, so that students can be familiar with and master the use method more quickly.

In order to meet the needs of different particle sizes, this handheld sieve is equipped with three standard specifications-coarse, medium and fine particle size ranges corresponding to the screening tasks under specific application scenarios. For example, larger meshes can be selected to remove impurities during soil analysis; while in the research phase of powdered substances, a more precise filter layer is required to achieve accurate classification.

Although powerful and complex, this handheld screen is very easy to use. The preparation can be completed through simple assembly steps, and the entire process can be completed smoothly without any special skills or professional knowledge background. Detailed instructions are also attached to further simplify the learning threshold for first-time users.

Many schools and research institutions have introduced the product and achieved remarkable results in practice. "The students showed great interest in this small, flexible and problem-solving new device." A physics teacher in a key middle school said, "it not only improves our teaching efficiency, but also stimulates more exploration spirit!" Also from a national agricultural research institute, it is reported that their test cycle has been shortened a lot of time because of this auxiliary device.

Looking forward to the future, with the continuous progress of science and technology and the increasingly obvious development trend, such convenient and reliable new teaching aids will be more and more widely used in various disciplines to promote the growth of the next generation of talents to take a big step forward! Imagine how exciting it would be for all young people to have access to such high quality teaching resources. Let's look forward to that day ~