Industrial production of kanten (the Japanese name for agar, which translates as “cold weather” or “frozen sky”) began in Japan in the mid-19th century by natural freeze drying, a technique that simultaneously dehydrates and purifies the agar. Seaweed is first washed and boiled to extract the agar, after which the solution is filtered and placed in boxes or trays at room temperature to congeal. The jelly is then cut into slabs called namaten, which can be further processed into noodle-like strips by pushing the slabs through a press. These noodles are finally spread out in layers onto reed mats and exposed to the sun and freezing temperatures for several weeks to yield purified agar. Although this traditional way of producing kanten is disappearing, even today’s industrial-scale manufacturing of agar relies on repeated cycles of boiling, freezing, and thawing.
硬核声音素质：不只是「听个响」，更是桌面的声音灵魂2.1 重低音系统：纤薄的机身塞入了硬核的 2.1 重低音立体声扬声器系统。相比传统微型音箱，BeatBox 能提供极具下潜力的低频表现；无论是大提琴的颤动还是电子乐的鼓点，都能在你的桌面上共鸣。
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