下壳

Absorbent cotton fibers were dissolved in trifluoroacetic acid,and then precipitated in the chitosan solution.

以三氟乙酸在无水条件下溶解脱脂棉纤维，在壳聚糖的醋酸溶液中析出。

In order to search for a suitable method for the tissue preservation and DNA isolation of marine animals, the adductor muscle of bay scallop was treated with different methods: frozen at -20 ℃, fixed with 70% ethanol and 10% formaldehyde more than 10 days.

以海湾扇贝为材料，研究了鲜活样品以及采用冷冻保存、70 %乙醇固定和10 %福尔马林固定等方法保存的闭壳肌样品用于DNA提取的不同效果，并分析了不同保存条件下所提得DNA用于RAPD扩增的结果。

Should be wiped with the soft cloth after wearing and dipped in cold water for one or two minute to protect the shell albuminoid after wearing half month.The constitution crystal of the calcium carbonate and the water can return to its original luster better.

南珠是北部湾海产之瑰宝，怕长期干燥，每次佩戴之后，应用软布轻微擦拭；佩戴半个月左右脱下用冷清水浸泡1-2分钟以保护壳角硬蛋白，碳酸钙和水构成的结晶体更好地还原其光泽。

Materials and methods: The composite was respectively prepared by blending Lysine, Histidine, Arginine with PLGA, while the composite respectively prepared by blending Algin, chitosan, NaHCO3 with PLGA as the comparison and the pure PLGA as the control. All composites were degradated in tri-distilled-water at 37℃ for 7 weeks. The degradation property of PLGA with the addition of basic additives was investigated by using gross observation, the pH change of degradation solution and the mass loss ration of the composite.

材料方法：将赖氨酸、组氨酸、精氨酸分别各按5%和10%的比例与PLGA制成复合物，于体外在37℃下在三蒸水中进行降解2个月；通过总体观察、降解液PH的变化、复合物的失重率等指标来考察碱性氨基酸对PLGA体外降解特性的调节作用，同时将碱性氨基酸的调节效果与海藻酸钠、壳聚糖、碳酸氢钠的进行对比。

The results show that Actonomyces grow well in the condition of alkalescence, aerobics and sterilization.

试验结果表明，在微碱性、透气、灭菌的条件下，放线菌生长良好，最佳配方为稻壳粉5g、豆粕5g、麸皮2g、鸡粪40g、风化煤46.5g、生石灰1.5g。

The strata in this section cover three lithostratigraphic units, seven conodont zones, five ammonoid zones and three bivalve zones. Two normal and two reversed magnetic polarity zones as well as the cyclic sequences corresponding to the Milankovitch climate periods driven by the Earth's orbit are well recognized in the lower part of the section.

该剖面包括3个岩石地层单元、7个牙形石带、5个菊石带、3个双壳类带；在剖面下段地层中识别出2个正向磁性带和2个反向磁极性带；与地球轨道天文周期相对应的Milankovitch气候沉积旋回也可以明确地辨认；碳氧同位素δ13C演变呈现两次大的旋回。

So it may be inferred that the protolith of the amphibolite is the product of different degrees of partial melting of the mantle in a magma arc.

显示出壳源性质或者是受到大陆下地壳的混染作用而形成。

The effect of ultrasonic on hydrolysis for chitosan with α-Amylase was studied in this paper.

研究了超声波条件下α-淀粉酶对壳聚糖的降解情况。

The results show that A-type granites in eastern China are of diverse crustal origins. They were either derived from anatexis of old lower crust or resulted from partial melting of recycling juvenile altered oceanic crust, and the latter has net contribution to the continental growth.

结果表明，中国东部A型花岗岩物质来源具有多样性，既可起源于古老下地壳深熔作用，也可由再循环年青蚀变洋壳通过部分熔融产生，后者是大陆生长的重要方式之一。

The acid volcanic rocks of the Early Cretaceous Shangkuli Formation belong to continental crust anatexis type ones (S-type volcanic rocks) and may have formed by compression and migration of the Indian-Australia plate toward the NNE and delamination of the lower crust caused by the lithospheric extension in eastern China.

早白垩世上库力组酸性火山岩属陆壳重熔型火山岩，其形成可能与印度澳大利亚板块朝北偏东方向推挤运移、中国东部岩石圈拉张引起的下地壳拆沉作用有关。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。