Improves the theorem “A finite poset is dismantlable if and only if it is dismantlable by irreducibles”, obtains a new theorem “A finite poset is homotopic dismantlable if and only if it is dismantlable by star irreducibles” and proves the equivalence of these theorems.
就Ｆｉｘｅｄ Ｐｏｉｎｔ ｉｎ Ｐｏｓｅｔ中的定理“有限偏序集Ｐ是可拆的充要条件为Ｐ是不可约可拆”进行了改进，得到了Ｐ是同伦可拆的充要条件为Ｐ是星形不可约可拆，并且证明了这两个充要条件等价，极大地简化了不可约可拆的判别
High-power detachable hot galvanizing furnace and its operation;
大功率可拆式热镀锌电炉及其运行实践
The study of treatment on the early class II malocclusion of mandibular retraction with a new detachable headgear-activator.;
可拆式头帽-肌激动器治疗早期Ⅱ类下颌后缩错畸形
The basic working principles and composition of China s first removable elevated flare are described.
结合工程实例,介绍了我国第一座可拆装高架火炬的基本原理及组成,并对可拆装高架火炬与普通高架火炬在安全、技术、安装、维修、占地面积、投资等方面进行了比较,还分析了高架火炬未来的发展趋势。
In order to ensure the construction schedule,removable split road foundation box was adopted so that the crane could work for the installation on floor.
由于国家会议中心施工作业面大,施工现场外布置的4台土建塔吊不能满足钢结构的吊装,为保证工期,采用可拆装分体式路基箱技术,使行走塔吊上楼板进行吊装,解决了大型吊装设备上楼的问题,避免了与土建其他工序的相互影响,保证了正常的钢结构的施工进度。
A modified removable suture in trabeculectomy;
小梁切除术中一种改良可拆缝线的疗效观察
Based on the quantity model,the traditional methods could not analyze the product disassembling in a conceptual design.
传统的方法基于定量模型,无法在概念设计阶段分析出产品的可拆卸性。
This paper studied the disassembling sieve in disassembly graph model systemically.
系统地研究了构造拆卸图模型过程中的可拆卸性筛子。
Design for disassembly is one of the great contents of green design.
绿色设计以节约能源和保护环境为设计理念,因此,农机企业开展产品的绿色设计是企业适应可持续发展社会的必然,而可拆卸性设计是产品绿色设计的主要内容之一。
For the purpose of developing a new way of end-of-life engine recycling, a disassembly experiment of end-of-life engine is given.
为研究废旧发动机回收利用的合理模式,本文对Chevrolet500型汽车发动机进行可拆卸性试验,从可直接利用、可再制造后利用、不可再利用三方面对废旧汽车发动机的回收进行了统计与分析,进而提出一种理想的废旧发动机回收循环利用模型。