贝壳

Look , here are some shell money and copper coins.

看，这里是一些贝壳钱币和铜币。

Money has had an interesting history from the days of shell money until today.

从贝壳货币时代至今，货币有一段非常有趣的演变史。

Money has had an interesting history from the days of shell money until today.

从贝壳货币时代至今，货币有一段非常

The main content of Micro-crystal stone are natural marble tile , shell, glass, mosaic tile , together with good quality macromolecule polymer adhere solution, it is manufactured through advanced technique, and it is environmental protection construction product.

岗石是一种微晶石产品，它是以天然大理石、贝壳、玻璃、马赛克等为主要原材料，配以优质高分子聚合物为黏结剂，经过先进的制造工艺精制而成的绿色环保建筑材料。

The main content of Micro-crystal stone are natural marble tile , shell, glass, mosaic tile , together with good quality macromolecule polymer adhere solution, it is manufactured through advanced technique, and it is environmental protection construction stone products .

岗石是一种微晶石产品，它是以天然大理石、贝壳、玻璃、马赛克等为主要原材料，配以优质高分子聚合物为黏结剂，经过先进的制造工艺精制而成的绿色环保建筑材料。

The main content of Micro-crystal stone are natural marble tile , shell,glass, mosaictile , together with good quality macromolecule polymer adheresolution, it is manufactured through advanced technique, and it isenvironmental protection construction product.

岗石是一种微晶石产品，它是以天然大理石、贝壳、玻璃、马赛克等为主要原材料，配以优质高分子聚合物为黏结剂，经过先进的制造工艺精制而成的绿色环保建筑材料。

We professionally produce shell mosaic tile, marble mosaic, stone mosaic, crystal mosaic and with pattern.

主要经营产品包括：贝壳马赛克、石材马赛克、玻璃马赛克、马赛克拼图。

Shell; limestone; fluidized bed; microstructure; desulfurization

贝壳；石灰石；流化床；微观结构；脱硫

Basing on experimental study, the article analyses the process of calcination and desulfuration reaction and builds a mathematical model of calcium-based materials (limestone, shell and their mixture), which will provide theoretical basis and practical guidance for improved performance of the normal sulfur sorbent and the choice of new sulfur sorbent.

然而传统的燃煤固硫剂石灰石，因钙转化率低而使该技术的推广应用受到限制，在实验研究的基础上，对钙基材料—石灰石和贝壳用于燃煤的煅烧固硫反应过程进行数学建模与分析，以便为改善常规固硫剂的性能，选择新型固硫剂提供理论依据和实用指导。

An ivory shell inlaid with crimson fire

一个象牙的贝壳盛满了赤色的火焰

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。