Chris crawled on his hands and knees out onto the highway.克里斯手脚并用爬上了公路。She crawled on all fours over to the window.她爬到窗边。They looked rather comical as they crawled up precarious ladders.他们顺着摇摇晃晃的梯子往上爬，看起来非常滑稽。...
The intermittent injection desolvation method is used to accumulate the sample the graphite furnace surface.本文所讨论的电热雾化法是采用继续喷洒去溶技术,使试样在石墨炉表面逐步积累的进样方法.The furnace top underlining construction is important characteristic o...