This summer Ms Boyd heard from a scholar in Brazil who, after reading her research, saw a parallel.
这个夏天,Boyd女士收到了一个巴西学者的来信,该学者在读了她的研究报告后注意到了一些相似点。
Crick, who saw a photo only of Dr. Franklin's B form, immediately recognized that DNA consisted of two parallel helixes, or twisted chains, running in opposite directions.
克里克见过富兰克林的B型照片,立即发现DNA包含反向旋转的两个并列螺旋列或叫扭曲链。
A power saw that has several parallel blades making simultaneous cuts.
由几个平行的刀片进行同时切割的动力锯。
A front guide device is fixed on machine frame, and a back guide device can do parallel motion along the shaft line direction of the saw shaft.
圆锯片与锯轴通过花键连接,前导向装置固定在机架上,后导向装置可沿锯轴轴线方向平行移动。
A front guide device is fixed on machine frame, and a back guide device can do parallel motion along the shaft line direction of the saw shaft.
圆锯片与锯轴通过花键连接,前导向装置固定在机架上,后导向装置可沿锯轴轴线方向平行移动。
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