mass shell

The significance of clean production of chitin;

甲壳质生产物料平衡分析及清洁生产途径

Research and Development of Chitin Spunlaced Medical Dressing;

甲壳质水刺医用敷料的开发研究

Exploitation and application of chitin and chitosan;

甲壳质和壳聚糖的开发及应用

Nanosized β-chitin was prepared by acidolysis of squid pen in microemulsion using ultrasonic method at 60 ℃.

鱿鱼软骨为原料,用微乳液与超声技术,在由聚氧乙烯醚、正辛烷和水组成的乳状液中,60℃超声条件下酸解,制得β-甲壳质纳米材料。

Some characteristics of β-chitin and its deacetyl derivative were studied compared with a-chitin and its deacetyl derivative.

对β-甲壳质及其脱乙酰衍生物的特性与α-甲壳质及其脱乙酰衍生物进行了比较研究。

Formation mechanism of calcareous incrustation in lenticular sandbody of the Shahejie Formation of Paleogene and its influence on hydrocarbon accumulation in Dongying Sag;

东营凹陷古近系沙河街组砂岩透镜体钙质结壳形成机理及其对油气成藏的影响

According to the GC-MS analysis of soluble organic matters extracted from coal and exinite heated in closed system pyrolysis,one characteristic feature of all samples is the relative low abundance of tricyclic diterpanes in saturated hydrocarbon fractions with the detection in the C_ 19 to C_ 26 range.

通过对塔里木盆地煤岩与壳质组热模拟实验可溶有机物的色—质分析,煤岩和壳质组三环二萜烷具有低丰度、窄碳数(C19～C26)特征,且三环二萜烷主要来源于煤岩结构中具有三环萜骨架前身物的断裂释放。

Further study on their composition of organic matter shows that the content of exinite and maturation (vitrinite Ro<1.

进一步分析这套地层的有机地球化学特征后，提出壳质组含量和成熟度是决定石炭－二叠系能否生成轻质油的主要因素，并提出该区煤系地层生成轻质油的成熟度下限是镜质组反射率Ｒ０为１。

These include proximate and ultimate analyses,BET nitrogen adsorption and thermogravimetry,It is found that the H/C ratio and VM content of exinite concentrate are the highest in three macer al concentrates,and these parameters of vitrinite concentrates are higher than those of inertinite concentrates.

结果表明，壳质组具有最大Ｈ／Ｃ比和最高挥发分含量，镜质组的Ｈ／Ｃ比和挥发分含量高于隋质组；显微组分的粘结性，镜质组大于惰质组；镜质组和惰质组相比较，镜质组的着火点低、燃尽温度也低，具有较窄的燃烧区间；壳质组的着火点最低，但是燃尽温度要高于镜质组。

Enclosed in an oval, horny case.Used of an insect pupa.

壳内的封闭在椭圆形角质壳内的。用于一虫蛹

The chitinous internal shell of a squid.

羽状壳乌贼的壳质的内壳

Every crustacean has a layer of shell, which is also called the carapace.

甲壳动物体外都有一层几丁质外壳, 称为甲壳。

The protein shell that surrounds a virus particle.

壳体，衣壳包裹着一个病毒粒子的蛋白质外壳

bathyrheal underflo

地壳下部补偿物质流

aluminum link capsule gun

连杆式铝质弹壳射孔器

An Improved Preparation Method for Chitosan, Carboxymethylchitosan and Chitosan Salts and Their Quality Analysis;

壳聚糖、羧甲基壳聚糖和壳聚糖盐制备新工艺研究及其质量分析

The "shell" is composed of three structures: the membranes, the mineralized part and the cuticle.

蛋壳由3种结构组成：膜，矿物质化部分和壳胶膜。

Studies on the technology of producing good quality chitin from the shell of Charybdis japonica

用日本蟹壳生产优质甲壳素的工艺研究

Relationship between Eggshell Color and Egg Quality and Laying Performance of Brown Egg Layers

褐壳蛋蛋壳颜色与蛋品质及产蛋性能的关系

Study on Genetic Regularity of Eggshell Color and Relativity of Egg Quality in Green-Eggshell Layer;

青壳蛋鸡壳色遗传规律及其蛋品质相关性研究

The effect of linked materials on the sound radiation from double cylindrical shell

壳间连接介质对双层壳声辐射性能的影响

the mottled horny substance of the shell of some turtles.

龟的甲壳上有斑纹的角质物质。

A protein substance that is the organic basis of mollusk shells.

贝壳硬蛋白作为软体动物贝壳有机基质的蛋白质

The Recovery of Astaxanthin and Protein from Discharged Wastewater during the Production of Chitin or Chitosan and the Utilization of Chitosan in the Treatement of Wastewater;

甲壳质、壳聚糖生产废水中虾青素、蛋白质的回收及壳聚糖在水处理中的应用

18W/24W high power LED street light. With metal exterior casing.

高功率LED投射灯，具金属外壳，质感佳。

Clean all foreign material from housing cover area.

清洁壳盖区域的所有杂质。

the outer covering of protein surrounding the nucleic acid of a virus.

包裹病毒核酸的蛋白质外壳。