查询词典 chitin

This review has a closer look at chemical modification of chitin and chitosan.

为此，甲壳素和壳聚糖的化学改性成为该材科研究的重要方向之一。

Thus, insect is potentially an abundant resource for alternative raw material of chitin in the future.

昆虫是当今地球上未被利用的最大生物资源，特别是昆虫的甲壳素资源尚未开发。

While humans and other ertebrates do not produce chitin, our bodies are equipped to recognize and eliminate it.

虽然人类和其它脊椎动物不能产生甲壳素，当我们的身体能识别并清除甲壳素。

No enzyme has been found to digest chitin.

还没有发现可以消化几丁质的酶。

It is derived from chitin, a natural components that is extracted from exoskeleton of shellfish by using advanced technology.

它是一种源自于甲壳质的纯天然物质。

Chitosan, derived from the deacetylation of chitin, is rich in nature.

低分子量的水溶性壳聚糖具有独特的生理活性和药用价值。

Chitosan, with wide application, was a kind of natural polymer materials prepared from chitin.

壳聚糖是由甲壳素经化学改性得到的有广泛应用价值的天然多糖高分子材料。

Chitin A nitrogen-containing polysaccharide found in the cell walls of most fungi and in some animals.

几丁质：在大多数真菌和一些动物的细胞壁中发现的含氮的多糖。

Deacetylation of chitin was studied under different conditions, such as different temperature, time and concentration of alkaline.

在甲壳素脱乙酰化反应的研究中，分别采用不同的反应条件：NaOH溶液浓度分别为40％和50％，温度分别为80℃，90℃，100℃，110℃，120℃，反应一定时间，测试产物壳聚糖的脱乙酰度。

The preparation method of chitin and chitosan with the ants was reasonable.

结论］采用蚂蚁制备甲壳素、壳聚糖的工艺是合理的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。