Manufacturers of the early 1900 s were using steel pipe, angle or channel for the greenhouse superstructures.二十世纪初期制造商们就已用钢管 、 角铁以及槽钢之类的材料建造温室的上部结构.Ships, Offshore and Marine Strutures : Above and below - water hull area...
Isoenzyme verification of American - Chinese hybrids of Liquidambar and Liriodendron.枫香属和鹅掌楸属中美种间的同工酶论证.Conclusion The water extracts of Folium liquidambar is have analgesic and anti - inflammatory effects.结论枫叶煎剂对小鼠具有镇痛 ...