查询词典 conch shell

Researches on Continuous Viscosity Determination in Polysulphone Production;2. Phenol resin was modified by choosing cashew nut shell oil, polysulphone as modifier and adding other assistant.

以腰果壳油、聚砜为改性剂对酚醛树脂进行增强改性，将改性后的酚醛树脂通过湿缠绕方法和玻璃纤维粘合，制成了水润滑轴承外壳，并研究了玻璃纤维含量对水润滑轴承外壳压缩强度的影响。

Preparation of water-borne polyurethane dispersion modified by epoxy resin;2. Preparation and Application of water-borne curing agent from cashew nut shell liquid;3. Synthesis and performance study of water-borne photosensitive PU acrylate PUA

以甲苯二异氰酸酯、聚丙二醇醚(PPG 2 2 0 )和二羟甲基丙酸为原料制备了阴离子型水性PU 乳液，研究了DMPA用量、n /n值、交联剂TMP用量对水性PU 乳液与涂膜性能的影响，得出了制备阴离子型水性PU 的最佳配

Urethane adduct was synthesized from decarboxylated cashew nut shell liquid,hexamethylenediisocynate and polyethylglycol,which was then reacted with melamineformaldehyde resin to form aqueous coating material.

采用天然植物油、己二异氰酸酯和聚乙二醇在较温和的条件下反应，制得了水溶性的氨基甲酸酯加成物，以此和低醚化度甲醚化三聚氰氨甲醚甲醛树脂制备了水性涂料。

Cashew nut shell liquid ; cardanol ; cardanol formaldehyde resin ; modification

腰果壳液；腰果酚；腰果酚醛树脂；改性

Finally, the guideline for efficiently preparing core-shell structured capsule carrier was tentatively proposed.The cationic, neutral and anionic polysaccharides were separately acted as the liquid core of biomimetic capsule by mimicking the component and function of cell sap. It was found that the electrostatic repulsion interaction between the polysaccharide core and the enzyme enhanced the enzyme activity and stability.

首先，模仿细胞液的成分和功能选用三种具有不同电性的多糖(羧甲基纤维素钠、甲基纤维素和羧甲基壳聚糖钠)作为仿生微囊的液核，经比较可知，与酶分子具有静电排斥作用的多糖更有利于酶构象、活力的维持和酶稳定性的提高；然后，模仿细胞膜的结构和功能构建仿生微囊的壳膜。

This shells were pretty close to an exact copy and even carried the same EFRA homologation number as the original Cental shell.

这炮弹相当接近，以完全复制，甚至进行相同的efra认证号码作为原中部蚬壳。

Both the experimental analyses and computer simulation were conducted to determine the statistical relationship between the structures and mechanical properties of centrifugally cast TC4 alloy in ceramic-shell mould.

摘 要：实验与模拟计算相结合研究Ti-6Al-4V(TC4)合金在陶瓷壳型离心精铸条件下，铸件模数对凝固过程冷速的影响，以及铸件组织、性能随模数和冷速之间的统计关系。

A cross-section of a nautilus shell in Boston shows the spiral of chambers, called camerae, that this cephalopod builds for itself as it grows.

一只横截面的鹦鹉螺壳在波士顿展示螺旋形的腔，叫做照相机，这是头足动物建造为它自己因为它要成长。

A small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many chambered shell in a .

旋壳乌贼属的热带小型头足类动物，眼睛突出，臂短，多个隔间的壳成扁平的状。

Cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions.

产于印度和太平洋的头足类动物，螺旋状的壳上有浅色珍珠状分隔线。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。