... complex multimedia database system 复杂型多媒体数据库系统 contact alloying 接触合金 channel-attachment major node 通道联结主节点 ...
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该项研究表明，持续接触1元面值（合88美分）和2元面值的欧元硬币5分钟，这两种硬币中所含的镍合金就可能引发皮肤病症状，包括皮炎和皮肤搔痒。
Just five minutes of contact with one-euro (88 U.S. cents) and two-euro coins containing nickel alloy could trigger symptoms, including skin inflammation or itching, the study said.
并且注意，用在高等级铝合金上的清洁剂，不得接触遮阳篷的布。
Also note that the cleaning agent, which is used on high grade aluminum alloy, must not touch the awning cloth.
同时，对该合金优良的接触疲劳抗力的来源进行了探讨。
The mechanism of the good contact fatigue resistance of the alloy was investigated.
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