一酸的

Neighbor-Joining analyses of teleost hepcidins showed that the eelpout 4cys variant arose independently from the notothenioid version, which lends support to adaptive evolution of reduced cysteine hepcidin variants on cold selection. The NJ tree also showed taxonomic-specific expansions of hepcidin variants, indicating that duplication and diversification of hepcidin genes play important roles in evolutionary response to diverse ecological conditions.

另外我们在另一种生活于南极水域的eelpout中也发现了一种含有4个半胱氨酸残基的hepcidin，而eelpout和南极鱼notothenioid在分类学上分属于不同亚目，是一类相差较远的物种，利用Neighbor-Joining方法建树分析发现eelpout的hepcidin虽然同样仅含有4个半胱氨酸残基，但和notothenioid的4cys_hepcidin有着不同的起源，这也进一步说明了hepcidin中半胱氨酸残基数目的减少确实是对寒冷环境的一种适应性进化。

The effects of different denaturants on CK and salt-induced molten globule state were studied. The results showed that arginine and aspartate caused inactivation and unfolding of CK.

在研究不同变性剂对肌酸激酶结构和活性的影响及盐诱导的熔球态时发现精氨酸和天门冬氨酸引起肌酸激酶失活和去折叠，为一级反应的一相过程。

Glycolate oxidase catalyzes the oxidation of glycolate to glyoxylate.

乙醇酸氧化酶能高效催化乙醇酸氧化生成一种重要的有机化工中间体乙醛酸。

An amino acid, C6H13N3O3, originally isolated from watermelon, that is produced as an intermediate in the conversion of ornithine to ''.

瓜氨酸一种氨基酸，c6h13n3o3，最初从西瓜中分离出来，在肝部的尿素形成过程中，其作为中介物将鸟氨酸转为精氨酸

Arginase, which converts arginine to ornithine and urea, is a kind of enzyme in urea cycle. It plays a significant role in N mechabolism.

精氨酸酶是尿素循环中的一种酶，催化精氨酸水解产生鸟氨酸和尿素，在机体氮代谢方面起了重要作用。

An amino acid, C6H13N3O3, originally isolated from watermelon, that is produced as an intermediate in the conversion of ornithine to arginine during urea formation in the liver.

瓜氨酸一种氨基酸，c6h13n3o3，最初从西瓜中分离出来，在肝部的尿素形成过程中，其作为中介物将鸟氨酸转为精氨酸

By using a fracture simulation unit,the regularity that temperature,flow rate and fracture width influence on HCl/dolomite reaction rate is investigated.The sequence of temperature,flow rate,acid concentration and fracture width influence to the acidic rock reaction rate is also studied in a four factors and four levels orthonormal test,and the sequence that acid concentration＞flow rate＞temperature＞fracture width is found.At the last,the possible HCl/dolomite reaction mechanism model which can explain the influence factors is derived.

文中利用人工模拟裂缝装置，研究了温度、注酸排量、裂缝宽度等因素对盐酸/白云岩反应速率的影响规律；并采用四因素四水平的正交试验，综合考察了温度、排量、酸浓度、缝宽四种因素对酸岩反应速率的影响的主次顺序，发现对酸岩反应速率影响力的大小次序为：酸浓度＞排量＞温度＞缝宽；最后，提出了盐酸/白云岩反应可能的机理模式，并根据这一模式对诸因素的影响进行了合理的解释。

Well, it contains lots of phytic acid, an acid which can also be found in yeast bread but not in sourdough bread.

它包含许多植酸，植酸是一种可以在发酵面包中找到，但不能在酵母面包中找到的酸。

Esterification process of a reversible step wereresolved as two irreversible steps,then chemical decomposition of wood components weredecreased in liquid acid catalyst.Experiments showed that crosslinking catalysts took catalysisrole on two process in the esterification,(1)five cyclic anhydrides formed by dehydration ofpolycarboxylic acids,(2)esters occurred by substitution between five cyclic anhydrides andwood.

实验中的反应过程使一般的酯化一步可逆反应，分解为两步不可逆反应，减少了液相酸催化过程的木材组分化学降解；交联反应催化剂对于多元羧酸类化合物与木材组分的酯化反应具有两个过程的催化作用：(1)多元羧酸脱水形成五元环酸酐中间体；(2)木材与五元酸酐中间体亲核取代反应形成酯。

The substance with a molecular weight of 6.28kDa has very strong cation character determined by the electrophoresis of diaphragm wafer of fiber of acetic acid. The substance with antibacteria action obtained from forest frog is made up of alanine,aminoacetic acid,leucine,Isoleucine,Proline,aminoglutaric acid,threonine,Serine,lysine.

纯化林蛙皮肤中的抗菌活性物质经醋酸纤维薄膜电泳，表明其具有较强的阳离子特征；经氨基酸分析，表明林蛙皮肤抗菌活性物质是由丙氨酸、甘氨酸、亮氨酸、异亮氨酸、脯氨酸、中国林蛙皮肤抗菌肽的分离纯化和鉴定一摘要谷氨酸、苏氨酸、丝氨酸、赖氨酸组成。

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。