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一阶微分方程 [数] differential equation of first order
高阶微分方程 [数] differential equation of higher order ; Higher-order Differential Equation ; higher differential equation
高阶微分 [数] differential of higher order ; [数] higher differentiation ; higher differential
分数阶微分方程 fractional differential equation
高阶微分器 HOD ; High Order Differentiator-HOD
二阶微分方程 [数] second-order differential equation
一阶微分 first-order differential ; first derivative ; first differential
一阶微分环节 First derivative element
二阶微分环节 Secondary derivative element
它们唯一共同之处就是,它们都被叫作一阶微分算子。
The only thing they have in common is that both are what's called a first order differential operator.
研究具有二阶可降阶微分约束的力学系统的形式不变性。
A form invariance for mechanical systems with second_order reducible differential constraints is studied.
本文利用拓扑度理论研究三阶微分系统反周期解的存在性。
Using topological degree the existence of anti-periodic solutions for third order differential systems is studied.
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