timing advance coupling 正时提前器
The numerical method represents a coupling between the optimum method of advance and retreat and the finite element analysis for the design on large hoist drums of cranes that is an actual structure.
采用空间薄壁板壳元与空间梁元混合离散模型对大吨位起重机钢丝绳缠绕卷筒进行有限元分析，将有限元方法与进退法优化方法耦合形成数值算法进而对卷筒进行优化设计。
In the present review the advance of theoretical studies on the spin frustration leaded from competing magnetic coupling interactions is briefly summarized.
简要地介绍多核配合物磁耦合竞争自旋阻挫的理论研究进展。
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