ND：无导数

“No Derivatives”常缩写为ND，主要用于快速书写和日常应用场景。这一术语常见于综合性或未明确分类的领域，其核心含义是“禁止衍生”，即不允许基于原始内容进行修改或再创作。这种表述方式在知识产权、共享协议等场合尤其常见，便于简洁传达使用限制。

If there were no derivatives, mortgage-originated crisis might end with the collapse of the housing market and bankruptcy of mortgage firms.
如果没有这些衍生产品，起源于抵押贷款金融危机，可能终止于住房市场和按揭贷款公司的破产倒闭。
The infrared spectral analysis shows that there is no derivatives generated during the dissolving process.
红外光谱分析表明纤维素在铜氨溶液溶解过程中没有发生衍生化反应。
In this paper, the addition formulae of the relativistic asymptotic geometrical and chromatic aberrations of general combined focusing-deflection systems have been derived, in which the aberration coefficients contain no derivatives higher than the second order, and no divergent terms.
本文导出了聚焦偏转复合系统的相对论渐近几何象差及渐近色差的合成公式，其中象差系统不含高于二阶的导数并且没有发散项。
An Example of Finding Derivatives of Fractional Order on Continuous Functions Having No Derivatives(ND) Everywhere
关于处处没有导数的连续函数求分数阶导数的例子
Conclusion : The endogenous NO ( NO or NO derivatives ) mediators may play an important role against excitotoxin induced seizures in rats.
结论：兴奋诱导性癫痫发作过程中内源性NO介质的变化可能具有重要的抗发作作用。

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