Since power plant boilers have become massive, their steel frames have become more and more complex, hard to be mastered by conventional calculation.
电站锅炉大型化以后，钢构架也变得更为复杂，普通的计算已难以满足要求。
The line-by-line model for the accurate calculation of plasma opacity requires massive accurate atomic data to deal with the detailed absorption lines.
细致谱线模型是等离子体辐射不透明度精确计算的理论方法，涉及到很多原子物理过程，需要计算大量的、精确的原子参数。
The data collection in matching design between rudder stock and rudder horn of single rudder pintle semi-balanced rudder is massive, and its calculation and optimization is complex.
单舵销半平衡舵的舵杆与挂舵臂的匹配设计需要提取的数据量较大，计算及优化过程也较为复杂。
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