保护：该装置是嵌入式软硅胶垫，以保护您的手机从刮伤或划伤等。
Protection: The device is embedded with soft silicone pad, which protect your phone from scratching or gashing, ect.
凝胶渗透柱子基于软硅胶，所以仍然是个问题，不过你使用硅胶基的填料就不必担心。
Gel-permeation columns based upon soft gels still can be problematic, but you shouldn't worry when using silica-based packings.
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