钻架是水平定向钻的主要承载部件，其强度和刚度对钻机能否正常工作影响很大。
The drilling frame is the main load-carrying part in horizontal directional drill, its strength and stiffness have great effect on the performance of the drill.
相比较而言，用实木或多层板所做的沙发框架，其成本及强度都要优于用定向刨花板所做的沙发框架。
Compare, use solid wood or Laminated veneer lumber do of the sofa frame, its cost and strengths all want to surpass to use the sofa frame that the Oriented strand board does.
研究了光弹性定向载波的基本原理和光强度分布，分析了由此产生载波条纹的分布规律。
This paper presents a study of oriented carrier-wave in photo-elasticity mechanics and the distributing of luminous intensity.
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