Usually we just use the circle method to deal with many additive prime problems, including the one in this paper.
我们经常只用圆法去处理堆垒素数问题，包括本文的课题。
2
This paper put forward some measure as setting up steam gas combined circle in connection with fully gas in rendering enterprises. They are useful in reducing prime cost and raising efficiency.
针对炼油企业瓦斯量较多，提出了建立燃气-蒸汽联合循环措施，对降低成本、提高效率有较大作用。
3
They are the curvature corrections for recording time at the determined zenith distances when a star passes the prime vertical and the meridian circle.