伐去伐区上全部成熟林木，使幼树自由生长。受光伐到后伐的间隔期，视幼树独立生活和抵抗不良环境条件的能力而定。后伐时应十分注意对幼树的保护，使能形成更新良好的幼林。
基民盟与绿党在北莱茵-威斯特伐利亚州的结盟，将为2013年大选后两党在国家层面上的结盟铺平道路。
A CDU alliance with the Greens in North Rhine-Westphalia could pave the way for something similar at federal level after the 2013 election.
伐倒后的树木经过燃烧会向大气中排放500吨的诱热性二氧化碳，从而为全球气候变暖推波助澜。
The trees, cleared and burned, release 500 tons of heat-trapping carbon dioxide into the atmosphere, contributing to global warming
排除鳞状细胞肺癌的患者和那些治疗前有咯血的患者后，贝伐单抗治疗导致的致命率就会下降到1.9%。
By excluding patients with squamous-cell lung cancer and those with hemoptysis prior to treatment, the rate was brought down to 1.9%.
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