Dynamic interactions of sea ice with offshore structures, ice-induced vibrations and ice loads identification, are still the hot and key problems in ice engineering.
海冰-结构的动力相互作用、冰激振动及冰载荷的识别问题，仍是目前工程海冰界的核心和热点问题。
The technology of structural dynamic loading identification is one of the key problems in modern engineering designs, and has a wide application future.
结构动态载荷识别技术是现代工程设计的关键问题之一，有着广泛的应用前景。
In addition, the shielding layer on the radio frequency identification key can also shield the RFID signal duly, so the safety problems of user RFID information disclosure and the like are prevented.
另外，射频识别钥匙上的屏蔽层也能将RFID信号进行适时屏蔽，这样，就防止用户的RFID信息外漏等安全问题。
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