1、
The nutrition value, cultivation quomodo and existing problem were introduced in this article.
本文介绍了螺旋藻的营养价值 、 培养方式及存在问题.
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2、
Mode theory and direct coupling quomodo of single mode fiber is discussed.
对单模光纤的模式理论和直接耦合方式进行了探讨；
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