看看他的头发，结的是个简单的髻。
一种简单的绳结，用来连接两条绳子，但双渔人结。
Simple knot to tie two ropes together. The double fisherman knot, however, is more popular.
采用上述结构的水喷淋清理方式，装置结构简单、实用高效。
The water spray cleaning device has simple structure, is practical and effective.
采用上述结构的水喷淋清理方式，装置结构简单、实用高效。
The water spray cleaning device has simple structure, is practical and effective.
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