介绍了一种适用于户外钢铁构件的锈渍转化液。
A rust conversion fluid for outdoor frameworks made of steel was developed.
这些令人惊奇的鱼提供小时的远程控制室内娱乐哪怕是最小的房间（适用于户外）。
These amazing fish provide hours of remote control indoor fun in even the smallest of rooms (not for outdoor use).
㩿另外，U 3751在操作时使用电池，只需五分钟预热，适用于户外和场地测试。
In addition, the use of U3751 battery in operation, only five minutes of preheating, suitable for outdoor and field test.
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