With these advanced production equipment, according to the different needs of customers, based on national standards, to continue design and development of new products.
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Electrode model is based on national standards with international standards determined.
焊条的型号是按国家有关标准与国际标准确定的。
National Institute of Standards and Technology researchers are developing atomic clocks based on the element ytterbium that could outclass cesium atomic clocks, which currently set the standard.
美国国家标准技术研究所的研究人员正在开发一种镱原子钟,这种原子钟可能比铯原子钟更好。目前的时间标准是由铯原子钟确定的。
On the foundation of sampling scheme by attributes, the suggestion has been made according to the characteristics of civil engineering structures based on the corresponding national standards.
在介绍计数型抽样检验原理的基础上,从建筑物鉴定检测的特点出发提出了采用相应抽样检验国家标准的建议。
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