Each berth should be fitted with a comfortable mattress with cushioning bottom or a combined cushioning mattress, including a spring bottom or a spring mattress.
每张床铺应配备带有缓冲底板的舒服床垫或包括弹簧底板或弹簧床绷在内的复合缓冲床垫。
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During the Spring Festival, he designed a flexible schedule where he combined the study with entertainment so that he could accomplish the academic task as well as enjoy a series of annual concerts.
According to the characteristics of dish-springcombined design, using computer aided design, database and computer graphics technology, this paper gives a CAD system of dish-springcombined design.