Mr. Buck is a good and worthful man.
巴克先生是个善良可敬的人。
It is worthful for people to know and study coal structure.
这一工作对研究煤得结构很有意义。
Therefore, this system is worthful to be studied and extended.
因此，本系统有其研究和推广的实际价值。
And must be combined with the traditional culture tightly, or they are not worthful.
而又必须和传统密切结合，才是有价值的文学。
The conclusions and suggestions are valuable for the engineering design, and worthful as references for the similar projects.
对于类似接近桩基的暗涵工程，具有一定参考价值。
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