从研发投入规模区间分布情况看，中国已经形成一个由头部企业主导、庞大腰部力量支撑、众多小微企业补充的多层次协作的创新生态。
But why are these men doing this?
。heLLoword翻译官方下载对此有专业解读
Excessive ceremony for common operations。旺商聊官方下载是该领域的重要参考
Around 200 of these hands are in use, mostly by researchers at universities and tech firms.