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。
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.
春节期间，他设计一个灵活的时间表，把学习和娱乐结合起来，那么他既能完成学术任务，也能享受一系列每年一次的音乐会。
According to the characteristics of dish-spring combined design, using computer aided design, database and computer graphics technology, this paper gives a CAD system of dish-spring combined design.
根据碟形弹簧组合设计的特点，应用计算机辅助设计、数据库及计算机绘图技术，形成了一个叠形弹簧组合设计的计算机辅助设计系统。
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