1) three-armed liquid crystal
三臂液晶
1.
A series of novel three-armed liquid crystals based on 1,3,5-trihydroxybenzene as a core and ω-[4-(p-alkoxybenzoloxy)phenoxycarbonyl]valeric acid as mesogenic arms were synthesized by aromatic esterification.
以间苯三酚为中心,ω [4 (对烷氧基苯甲酰氧基)苯氧甲酰基]戊酸为液晶基元,通过酯化反应合成了芳香酯类三臂液晶化合物·这是一类不同于传统棒状及盘状液晶分子的新型结构液晶化合物·通过红外光谱(IR)、核磁共振谱(1HNMR)对其分子结构进行表征·采用差示扫描量热(DSC)、偏光显微分析(POM)、热重分析(TG)等手段对其液晶性能及热稳定性进行研究·结果表明,此类三臂液晶化合物符合分子设计,热稳定性好,5%热失重温度高于340℃,液晶区间随着分子中末端烷基链的加长而增宽,升、降温过程中均呈现丝状织构,属互变向列相液晶
2) four-armed liquid crystal
四臂液晶
1.
A new class of star-shaped four-armed liquid crystals based on pentaerythritol as a flexible core was synthesized by aromatic esterification.
以季戊四醇为中心,4-(正烷基酰氧基)-4′-苯甲酰氧基苯甲酸为液晶臂,经酯化反应合成一种芳香酯类星型四臂液晶化合物。
3) monoarm liquid crystalline crown ether
单臂冠醚液晶
1.
Two monoarm liquid crystalline crown ethers and coordination complex (1, 2 and 1·Eu3+) were studied by the method of LB technique.
研究了两种单臂冠醚液晶及配合物(1,2及1·Eu~(3+))的LB膜的成膜特性。
4) tri-arm rocker
三臂摇臂
5) three-arm hydraulic drilling rig
三臂液压凿岩台车
1.
During the excavating construction of underground caverns of Longtan hydropower station, some advanced mechanical equipments such as three-arm hydraulic drilling rig, shotcrete machine, mobile elevating platform and articulated self-unload trucks, are widely used.
龙滩水电站地下洞室群开挖施工中采用了三臂液压凿岩台车、混凝土喷射机、移动式升降平台车和铰接式自卸汽车等国内外先进的施工机械设备,这些设备的应用,为龙滩水电站地下洞室群实现快速施工,保证工程进度及质量,取得良好的经济效益提供了保障,为此,对其性能及优点进行了介绍,为类似工程的施工提供借鉴。
6) Dendrite arm
枝晶臂
1.
On the basis of dendrite arm alignment on the intersection plane, traces of a known crystal plane were made on the alloy surfaces.
根据枝晶臂截面排列方向作已知晶面在合金表面上的痕迹 ,由此确定铸造合金的晶体位向及定向切割线。
补充资料：热致液晶聚合物向列液晶态
热致液晶聚合物向列液晶态
执戮液晶饭合物向列攻晶态 成郎有f几硅研究听供稿
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条