The problem here is the scrubber technology is incredibly expensive to operate.
但问题是这种过滤技术非常昂贵。
Spread head, glass scrubber, telescoping rod, water bucket, glass detergent, clean water, wiping cloth.
喷头、玻璃刮、升缩杆、水桶、玻璃清洁剂、清水、抹布。
Spread head, glass scrubber, telescoping rod, water bucket, glass detergent, clean water, wiping cloth.
喷头、玻璃刮、升缩杆、水桶、玻璃清洁剂、清水、抹布。
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