When the plating exist defect, the gold - plating nickel - plating both promote the stress - corrosion fracture of Kovar alloy. 在镀层存在缺陷时, 镀金、镀镍层均促进柯伐合金的应力腐蚀开裂.
The reasons that Rose introduced Christianity Byzantium as the state religion mainly have three respects.罗斯统治阶级引进拜占廷基督教为国教,是基于多方面考虑的结果.While they promulgating the Christianity , English was also publicized in China.他们在传教...
In its untreated state the carbon fibre material is rather like cloth.原始的碳纤维材料很像布料。If left untreated the condition may become chronic.这种病如果不治疗可能会发展成慢性病。If untreated, the illness can become severe.若不加以治疗，病情就可能会变得很严重。...
I sneaked up the stairs.我蹑手蹑脚地上了楼。She sneaked a surreptitious glance at her watch.她偷偷看了一眼手表。He sneaked away in the middle of the meeting.他在会议中间悄悄离开了....