难免类型:复杂修饰、倒装
It was possible to demonstrate by other methods refined structural differences among neuron types; however, proof was lacking that the quality of the impulse or its condition was influenced by these differences, which seemed instead to influence the developmental patterning of the neural circuits.
有可能通过其他方法来证明神经元种类间的细微的结构差异;可是,这样的证据是缺乏的,即神经冲动的性质或者状态是受这些差异所影响的,而这些差异看起来却能影响神经网络的发育模式。
解释:与很多人的印象相反,lack从来就不能作形容词,它只有动词或名词的词性。其形容词的形式是lacking,意思是缺乏的、不足的。
本句的在however 之前和之后的两个分句,是两个倒装结构,前一个是小倒装,正常语序是:to demonstrate refined structural differences among neuron types by other methods: however后面是个大倒装,lacking之后的that引导的同位语人名是修饰主语proof的,但是因为它太长,所以为了避免头重脚轻,被放到lacking之后,正常的语序应该是proof that the quality of ..was lacking