The invention relates to a protective device combined by fabricated explosion-protection wall and turnover road needle, belonging to the structure engineering field.
本发明装配式防爆墙和翻转式路刺组合防护装置属于结构工程领域。
The stress field in the composite fabric which made by needle punching during tensile test, and the difficulty of calculating the stress - strain property are analyzed from the fabric structure.
根据针刺复合织物结构，分析其在拉伸过程中的内部应力场，说明拉伸应力应变预测计算的困难。
Thus in the field conditions, photodegradation plays a major role on the fate of PCDD/F and PAH adsorbed on spruce needle surfaces.
实验结果表明，在野外环境条件下，光解对于吸附到云杉针叶表面的PCDD／F和PAH的归宿起着重要的作用。
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