The study of hydraulic grade line is an important project in navigation engineering.
在航道的整治设计中，对水面线的研究一直是一个重要课题。
The build quality is ok and in line with other consumer grade Nikkor lenses.
工艺品质不错，和其它的消费级别尼康镜头保持一样的水准。
The pulse type line laser is a nanosecond grade green laser.
所述脉冲式线激光器为纳秒级脉冲绿光激光器。
High-grade digital photo paper production line with high performance and low costs.
高性能、低成本的高档数码相纸生产线。
High-grade digital photo paper production line with high performance and low costs.
高性能、低成本的高档数码相纸生产线。
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