nondestructive technique meaning in English

不破坏样品的分析技术
非破坏技术

As allelochemicals from plant root exudates are becoming a hotspot in the field of soil ecology , such problems as the nondestructive techniques for collecting in - situ and the identification of allelochemicals from plant root exudates should be emphasized in the future
根分泌物化感作用的研究已成为土壤生态学领域的热点与前沿课题，自然条件下原位收集鉴定植物根系分泌物中的化感物质等诸多问题是该领域今后的研究重点。
As a nondestructive technique to measure the inner fine structure of the cathode , the ict has the unique advantage . we discussed the emission mechanism of thermionic cathode , and tried to explain the excellent performance of mixed metal cathode by richardson formula and muller ' s computational model
4 )就当前钡钨阴极发射机理的两个主要理论模型作了自己的探讨，并初探了钡钨阴极中钡的供应机制及发射寿命预测的问题，而且用理查逊公式的推导和muller计算机模拟法解释了混合基钡钨阴极的优良性能。