... 铸件重量公差 weight allowance of 铸件加工基准面 reference face for 铸件表面粗糙度 surface roughness ...
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We’re always appreciated for our public face–our thorough and knowledgeable reference service, our extensive collection of materials, our flexibility in terms of circulation and accessibility.
作为编目员,我们也永远都感谢我们图书馆公共的一面:我们博学多识的参考咨询服务、我们丰富的馆藏资料、以及我们流通和获取的灵活措施。
High vocational institute and college also face the research and practice for digitalized reference and consulting services.
高职高专院校图书馆同样面临着数字化参考咨询服务的探索与实践。
This will have important application and reference value for the support of digging work face in sub-seam under very close and close coal seam.
这对极近、近距离煤层下分层掘进工作面的支护具有重要的应用和参考价值。
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