The blue detuned laser beam is physically equal to a quantum potential barrier.
蓝失谐的激光束相对于冷原子而言等效于一个量子力学势垒。
The cross beam model is used to analyze the internal forces of reinforced concrete traffic barrier, and the results coincide with the test results.
本文采用交叉梁法分析钢筋混凝土护栏内力，并与试验结果进行了对比。
Structural softwood decking beneath a polyethylene vapour barrier and deep I-beam rafters supports 500 mm of cellulose fibre insulation.
结构软木装饰在聚乙烯隔汽层下面，深的I型梁、椽支撑着500m m厚的纤维板保温层。
Structural softwood decking beneath a polyethylene vapour barrier and deep I-beam rafters supports 500 mm of cellulose fibre insulation.
结构软木装饰在聚乙烯隔汽层下面，深的I型梁、椽支撑着500m m厚的纤维板保温层。
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