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1·All documents must indicate this documentary credit number and NTN.

所有的文件必须指出信用证号码和NTN。

2·METHODS: NTN model was established with rabbit-anti-rat nephrotoxic serum.

方法：用兔抗鼠肾毒血清复制NTN模型。

3·NTN import bearings can be made according to customer requirements of various non-standard bearings.

NTN 进口轴承，还可根据客户要求订做各类非标轴承。

4·Uncertainty of national standard parameter based on NTN technology is discussed detailedly in the dissertation.

本文详细研究了基于NTN 校准技术的脉冲波形参数国家基准的不确定度。

5·In this article, based on NTN calibration technology, the problem of phase-wrapping encountered in NTN calibration procedure is analyzed.

基于“NTN”校准理论，分析了“NTN”校准法中的相位卷绕问题及其带来的误差。

6·The functions, performance index, configurations and principles of the main modules of the BJTU-NTN test station of traction motor bearing were introduced.

介绍了“北京交通大学-NTN牵引电机轴承试验站”试验台的功能、性能指标以及各主要组成部分的结构与原理。

7·It was found that NTN can promote survival and growth of neurons when culturing primary embryonic mesencephalic neurons with conditioned medium contained NTN.

用表达ntn的条件培养基处理原代培养胚胎中脑神经元，发现其有促进神经元存活和发育功能。