本公司对产品规格、设计特性均不断研究改进，上述参数等如有变更，恕不另行通知。
The company′s product specifications, design features are constantly studying to improve, technicalparameters such as the above are subject to change without notice.
通过计算分析，在现有顶管机的基础上进行工艺参数优化，可扩大机组生产的产品规格和品种。
Based on the said calculation and related analysis, process parameter optimization is done to expand product mix in terms of size range and variety.
应用推荐