1. Movable parts collocated with aluminum hollow shutter, aluminum plate punching combined hollow shutter and tempered, joint sealant, hollow, colored glazed glass shutter. 活动构件配置铝质中空、铝板冲孔组合中空百叶及钢化、夹胶、中空、彩釉玻璃百叶。
2. Movable parts collocated with aluminum hollow shutter, aluminum plate punching combined hollow shutter and tempered, joint sealant, hollow, colored glazed glass shutter. 活动构件配置铝质中空、铝板冲孔组合中空百叶及钢化、夹胶、中空、彩釉玻璃百叶。
3. Pedal of hollow shaft is designed with hollow bar structure. The strength and rigidity of hollow shaft and solid shaft are analysed and calculated. 采用中空杆件的结构形式设计了空心轴脚蹬，对空心和实心两种轴的强度和刚度进行了计算分析。
4. The core of the propellant is hollow and it burns out from the middle so that the gas accelerates through the hollow core out of the back of the solid rocket booster. 推进剂的内核是中空的，它从内部中间开始燃烧以至于气体加速流过中空的内核而从固体火箭推进器的后端喷出。
5. The heating mechanism of hollow cathode effect and the technology of hollow cathode plasma sintering cerium-tungsten alloy adobes are researched. 对空心阴极效应的发热机理及空心阴极等离子烧结铈钨坯工艺进行了初步研究。
