然后把加热器吻合地安装在罩壳内.Anastomosis then heater installed in the Shell.对透明塑料罩壳注射模结构, 采用点浇口进料.For the injection mold structure of transparent plastic cover shell, point gate feeding is adopted....
He collected an old engraving of London Bridge.他收藏了一张古老的伦敦桥版画。Some writing has the precision of a steel engraving.有的字体严谨如同钢刻.The engraving was rolling up in a sheet of tissue paper.版画裹在一张薄纸里....
无疑,这种光合作用的总的化学计量学中,包含有许多不同的反应.Undoubtedly many different reactions contributed to the overall stoichiometry of photosynthesis.本文从多方面研究了电容规的 计量学 特性.The metrological characteristics of the capacitance diaphragm gauge ( CDG...