Must have a double coat. The guard coat must be thick and coarse.
必须有双层毛，外层毛必须粗而硬。
Nissan's Scratch Guard Coat is currently available on the 2008 Infiniti EX35 luxury crossover utility vehicle.
尼桑的擦痕保护面漆目前已用在2008英菲尼提ex35型豪华多功能车上。
He spray, which is harmless to the environment, can be used to protect against disease, guard vineyards against fungal threats and coat the nose cones of high-speed trains, it has been claimed.
据称，一种对环境无害的喷雾能用来预防疾病、防范真菌对葡萄园的威胁，覆盖高速列车的鼻锥。
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