For gas lasers a helical resonator with coaxial ring discharge structure is proposed, and the theoretical analysis is given.
提出了一种适用于同轴环形放电结构气体激光器的环形螺旋谐振腔，并给出了理论分析。
In this paper, the design basis, calculation method and construction feature of the new type composite oil ring with helical spring used in the medium and high speed diesel engine are described.
本文介绍了一种中、高速柴油机上使用的螺旋弹簧式组合油环的设计依据、计算方法及结构特点，总结了在120型柴油机上的试验结果。
The structural design and application for combination between the helical axial seal and floating-ring seal have been performed.
实现了螺旋密封与浮环密封相结合的结构设计及应用。
The structural design and application for combination between the helical axial seal and floating-ring seal have been performed.
实现了螺旋密封与浮环密封相结合的结构设计及应用。
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