为了避免超弹性现象，提出动态约束法限制弹簧的可伸长长度；
To avoid the super elasticity, a dynamic constraint method was proposed to restrict the tensile length of springs;
针对这些不足，通过使用动态速度约束和光流法对算法进行了改进。
To surmount these disadvantages, dynamic speed constraint and optical flow method were introduced.
详细介绍了图论法、动态规划法、神经网络法、MCST法和约束导数法等在城市天然气管网规划中的应用。
The application of graph theory, dynamic programming, neural networks, MCST method, constrained derivatives, etc. to pipe network programming were recommended in details.
针对非视距环境下多站定位方法需要资源量大、成本高且定位精度受非视距传播影响大等问题，本文提出了单站定位的伪目标动态可行域约束法。
A location method aiming at suppressing NLOS errors in cellular networks using single observer is proposed, which is named by pseudo-target dynamic feasible region constraint method.
针对非视距环境下多站定位方法需要资源量大、成本高且定位精度受非视距传播影响大等问题，本文提出了单站定位的伪目标动态可行域约束法。
A location method aiming at suppressing NLOS errors in cellular networks using single observer is proposed, which is named by pseudo-target dynamic feasible region constraint method.
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