The upper surface mounting points (30) for the sheath (22) can be used for positioning of the sheath, and enable the sheath to be grouted into position in a one stage process.
用于外壳（22）的上表面安装口（30）可用于外壳的定位，并可使 得外壳在单步骤过程中被灌浆入就位。
These have limited the development of furfural production. In this paper, one-stage process was reviewed briefly. Two-step process and current development of furfural production were discussed.
本文在对一步法的生产工艺进行概要介绍的基础上，重点对两步法糠醛生产工艺以及糠醛生产工艺的最新进展进行了讨论。
The one-stage process silane crosslinked PE anti-precrossing linking technology was studied.
研究了一步法硅烷交联聚乙烯抗预交联技术。
The one-stage process silane crosslinked PE anti-precrossing linking technology was studied.
研究了一步法硅烷交联聚乙烯抗预交联技术。
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