Research on the influences of shell powder on the thermal degradation behaviour of PVC by IR
采用红外光谱法研究贝壳粉对PVC热降解行为的影响
By means of dathizone spectro photometric analysis method, the trace Hg 2+ in the shell powder was determined.
应用双硫腙分光光度法，测定贝壳粉中痕量的汞，结果表明：测定的灵敏度和标准回收率高，相对误差小，效果好，贝壳粉中汞的含量小于２。
The results showed that the dry sandy soil under peanut cultivation,applied shell powder and formula fertilize fused calcium-magnesium sulfur,than that of the control,increased 50.
结果表明,在旱沙土上种植花生,施用贝壳粉和钙镁硫配方肥,比对照分别增产50。
Study on Heavy Metal Content in Oyster Shell and Its Relevance to Sea Water;
近岸海域贝壳与海水重金属含量的相关性研究
Study on the preparation of the calcium citrate from shells with once time calcination;
以贝壳为钙源一次煅烧法制取柠檬酸钙
Studies on the Desulfurization Kinetics of Shell Sorbent Using Thermogravimetric Analysis Method;
热重分析法研究贝壳固硫反应动力学
Methods for Morphometry and Analysis of Gastropod Shells;
腹足类贝壳特征的测量及分析方法
In this paper,calcination characteristics and desulfurization property of several kinds of shells are studied by using thermogravimetic analysis methods.
采用热分析方法对几种贝壳的煅烧特性和固硫特性进行实验研究 ,在理论分析和实验研究的基础上得到贝壳煅烧反应的动力学模型 ,并求出表观活化能 ,结果表明贝壳的表观活化能比石灰石小约 10 0kJ·mol-1。
There are different varieties of shells with different shapes, which are the basis to classify them.
贝壳种类繁多 ,形态各异 ,是贝类分类的主要依据 ,因来源不同贝壳的化学成分略有差别 ,主要有占全壳95 %的碳酸钙和少量的贝壳素 ,简述了贝壳在工艺品制造、养殖业和医药方面的应
The multilayer toughening conch nacre structure bio-inspired ballistic resistant composites which consisted of thin layer ceramic and resin matrix composites were prepared.
将薄层抗弹陶瓷材料与树脂基复合材料通过仿生结构设计制备了软、硬相交替叠合的多层增韧贝壳珍珠层结构仿生复合材料。
Research on the influences of shell powder on the thermal degradation behaviour of PVC by IR
采用红外光谱法研究贝壳粉对PVC热降解行为的影响
Study on Preparation and Application of Solid Base Catalyst for Biodiesel Production with Shell Powder as Carrier
以贝壳粉为载体的固体碱生物柴油催化剂的制备及其应用研究
cultivated for its shining oblong leaves and arching clusters of white flowers with shell-pink shading and crinkled yellow lip with variegated magenta stripes.
叶子长方形发光，拱形白色花串带有贝壳粉色调，带褶的黄色唇瓣上有品红色带斑点的条。
The beach was strewn with countless shells, and they crumbled underfoot.
海滨贝壳密集，它们在脚下被踩得粉碎。
In colour the shell was deep cream, touched here and there with fading pink.
贝壳是深米色的，散布着淡淡的粉红斑点。
Preparation and Study on Performance of Epoxy Matrix Composites Modified with Shellfish Powder;
贝壳微粉改性环氧树脂复合材料的制备及性能研究
Betty sells shells on the back of a red shell.
贝蒂在红色贝壳的背面上卖贝壳。
White shell beads used as wampum.
白色贝壳串珠用作贝壳串珠的白色贝壳小珠
shellfish with a hinged double shell,eg a mussel or clam
双壳贝类（如贻贝或蛤）
How Does the Sound of the Ocean Get Inside a Seashell?
到贝壳里“听海”？
In present paper, the structure of nacre and coating pearl powder on titanium substrate by Electrophoretic Deposition(EPD) were investigated.
文中首先研究了片状珍珠粉的制备工艺,分析了贝壳珍珠层与珍珠粉的结构。
The shells she sells are seashells, I'm sure.
我确定她卖的贝壳是海贝壳。
Having or forming a shell.
有贝壳的有或形成贝壳的
Wampum was made of seashells.
贝壳串珠是用海贝壳制作的。
Shells can be found everywhere on the beach.
海滩上的贝壳俯拾皆是。
and the roof was made of shells.
屋顶则是贝壳打造的。
For if she sells seashells on the seashore,
因为她在海边卖贝壳，
cook(eg oysters)in a scallop-shell
在扇贝壳里烤制（如牡蛎）.