1) white hemlock
美国东部铁杉
2) mountain hemlock (Tsuga mertensiana Sarg.)
美国西部铁杉
3) Northeastern United States
美国东北部
1.
Based on the analysis of many factors which constrain the sustainable development of aviation in the Yangtze River Delta,and on the comparison with the Northeastern United States metropolitan region,which is similar to the Yangtze River Delta,some suggestions were put forward to promote the coordinated development of the air.
通过对制约长三角航空业可持续发展的诸多因素分析,并选择与长三角都市群相似的美国东北部都市群进行对比,提出了推进长三角地区机场群协调发展的建议。
补充资料：美国异叶铁杉
常绿乔木，高40m，枝梢下垂，叶长1－2cm，闪闪发亮，深绿色极有光泽，人见人爱，观赏性极强，生长速度快，耐－20度低温。（源自：林业实用技术）
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条