Toothing of chain wheels for use with extended - pitch precision roller chains as specified in din 8181 ; profile dimensions 按din 8181规定用于长链节滚子链的链轮齿连接.齿廓尺
Specifications for selecting chain link barrier systems with coated chain link fence fabric and round posts for detention applications 拘役用带涂层链节栅栏结构和圆柱的链节栅栏系统选用规范
Standard specification for selecting chain link barrier systems with coated chain link fence fabric and round posts for detention applications 选择拘役用带涂层链节栅栏结构和圆柱的链节栅栏系统的标准规范
Specification for continuous mechanical handling equipment - safety requirements - conveyors and elevators with chain - elements - examples for guarding of nip points 连续式机械装卸设备规范.安全性要求.第18部分:链节式输送机与升降机-啮合点保护示例
In odontoid chain drive , the chain bears a periodical alternating load , in which the impact load produced while the link meshes into the tooth of sprocket makes comparatively big effect 摘要在齿形链传动中，链条承受周期性的交变载荷，其中链节啮入轮齿时产生的冲击载荷影响较大。
Body concentration , interaction energy between segments , adsorption energy of surface , and macromolecule chain length were used to affect the adsorption behavior of macromolecules 改变链节间相互作用能相当于研究不同高分子的吸附，而界面吸附能的变化，则相当于固体表面性质的改变。
Century ck security locks . with a unique set of bar - hyacinth which greatly increased the twisting force to unlock , can prevent the shake of the chain of soft keys , and also constantly shedding rafah 世纪西科防盗锁，独有的葫芦型套杆，大大增加了开锁的扭拧力，防止链节软钥匙拧断，拉断脱落。
An incredible sculpting job means every link in the mail seems to be visible , every twist of the plaited beard is sharp and clear , every rivet in the shield or helmet is present and correct 令人不可思议的精细雕刻意味着，每一个链甲上面的链节都清晰可见，胡子上面的每一丝缠绕都轮廓分明，每一个盾牌和头盔上的铆钉都得到的完全正确的表现。
The parameters in simulation could characterize macromolecules adsorption in real solution . varieties of interaction energy between segments corresponded to different macromolecules . varieties of adsorption energy of interface corresponded to different solid surfaces 改变模拟参数大小对高分子链节分布的影响，与真实体系中链节、溶剂和界面等因素对高分子吸附的影响是一致的。
In this thesis , the development of emulsion polymerization theory and related new technologies are comprehensively reviewed , and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed . based on the current development and research in this field , attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons , that is , 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized , which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer , different acrylates and a reactive emulsifier . by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor , the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented , as a result , organosilicon content in the macromolecular chain is increased 同时采用有机硅单体延迟滴加及添加水解抑制剂等技术，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合过程中的过渡水解及缩合反应，提高了聚合物大分子链中有机硅链节的含量；利用红外光谱与差示扫描量热仪对产物分子结构进行了表征，并通过对共聚产物力学和吸水率的测试，证实了本研究所制备的有机硅改性丙烯酸酯共聚物具有比纯丙烯酸酯聚合物更优良的力学及耐水性能；从分子设计角度出发，利用醇解反应合成出水解、缩合反应速率较慢的两种新型不饱和有机硅单体： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三异丙氧基硅烷；利用核磁共振对新型硅烷单体结构进行了证实；研究表明利用新型硅烷单体可以制备出高硅烷含量的有机硅改性丙烯酸酯乳液，且其聚合产物具有较高的力学及耐水性能。
