植物由于具有螯合机制可能影响土壤的化学特性.Plants may possibly influence soil chemistry by the possession of chelating mechanisms.确定螯合 -- 溶剂萃取法所得到的检测限颇为困难.It is difficult to define the detection limits obtained by chelation - solvent extract...
Your dog should have his own bowls for food and water.你的狗应该有它自己进食和饮水用的碗。The dog hurt one of its pad when It'stepped upon a thorny path.这只狗在踏上一条有荆棘的小路时,伤了一只爪垫.No one is dare to get close to your dog as it is too fera...