The second would be the high level of design quality of all engineering aspects of high speed railway projects so that project implementation is carried out without any technical changes.
二是确保高速铁路项目工程设计各方面的高质量，从而使项目可以顺利实施，无须做任何技术变更。
Comprehensively optimal design plans for the conventional controlled atmosphere furnace were proposed to counter its bad temperature uniformity, low automatic control level and low cooling speed.
针对传统气氛炉的温度均匀性差、自动化程度低、冷却速度慢等一系列问题提出全面优化设计方案，并取得了良好的效果。
It is mainly due to the low level of mould design and manufacture and the low produce speed.
而这主要是由国内模具设计制造水平低、速度慢引起的。
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