单种的

The results show that the optimal hydrolysis conditions of these three enzymes were:50℃,pH 8.5, substrate concentration 1:3,enzyme dosage 1200U/g,time 4h for Alcalase; 45℃,pH 8.1, substrate concentration 1:3, enzyme dosage 1200U/g, time 4h for Trypsin;50℃, pH5.5, substrate concentration 1:3, enzyme dosage 1400U/g, time 6h for Bromelin, respectively. The compound enzymes hydrolysis was investigated on the basis of the single enzyme hydrolysis.

利用单因素试验和正交试验分别对这三种酶单独水解牡蛎的条件进行了研究，得出三种酶水解牡蛎的最佳条件分别为Alcalase：温度50℃，pH8.5，料水比1：3，加酶量1200U/g，时间4h；胰蛋白酶：温度45℃，pH8.1，料水比1：3，加酶量1200U/g，时间4h；菠萝蛋白酶：温度50℃，pH5.5，料水比1：3，加酶量1400U/g，时间6h；为牡蛎生物活性肽的开发提供了基础参考数据。

Crocoite is a mineral consisting of lead chromate and crystallizing in a monoclinic crystal system, and it is the only chromate of any importance found in nature.

赤铅矿是一种由铬酸铅组成的矿石，以单斜晶体形式存在的结晶体。并且是自然界中发现的唯一一种重要铬酸盐。

This paper presents the expressions of energy consumption in two types of blank holding: the conventional hydraulic cushion and cushion-compensating cylinder in single-action deep-drawing hydraulic press,and shows through comparison that the energy consumption in the latter one is far less than that in the former one.

用能量法推导了单动拉深液压机的两种压边方式即传统液压垫压边方式和液压垫—补偿缸压边方式的能量损耗表达式，以此为基础对两种压边方式产生的能量损失进行比较，结果表明后者远小于前者。

Any of various submersed aquatic herbs of the genus Elodea, native to the New World, having opposite or whorled one-nerved narrow leaves and small axillary flowers.

伊乐藻原产美洲的几种伊乐藻属水底草本植物之任一种，有对生或轮生的单脉狭长叶片和腋生的小花

Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes.

香香甜甜、温柔可爱是女孩子们的天性，而《细胞》杂志上刊登的一篇研究表明使这种女性特征得以维系依赖于一种顶级基因测定——一种单基因抑制着女孩子们的卵巢变成睾丸。

Dien = diethylenetriamine: Thecoordination sphere of copper in the complex is distorted square-based pyramidalgeometry with 〓 chromophores.

两种构型的titb配体同时与〓单元配位，在晶格Ⅲ平面形成了一种72元心形环。72元心形环在晶格Ⅲ平面无限扩展，形成由72元心形环稠合而成的平面网状结构。

A new single-wire capacitance probe with a high sensitivity of 1.52 pF/mm was used to measure water layer height in oil-water two-phase flows in horizontal pipes.

利用一种单丝电容探针，对水平管内机油-水两相流的水相高度进行测量。实验中油、水相折算速度分别为0~0.2 m/s和0~0.8 m/s，覆盖了水为连续相的全部流态：包括波状分层流、三层流、水包油/水和水包油4种流型。

Directed against the commonly used control methods which adopt logical threshold value, we put forward a self-optimizing control method, based on the single-wheel vehicle model, the loading diversion is laid special stress, further, build the mathematics model of two-wheeled vehicle, and the scene of which move on three types of typical road surface.

针对几种常用的主要采用逻辑门限值控制的方法，提出了一种自寻最优控制方法，并在已有的单轮汽车模型之上，重点考虑了载荷转移问题，建立了双轮汽车的数学模型，将该方法运用于双轮汽车的模型在三种典型路面的仿真。

Fluorescence emission spectra and UV absorb spectra analysis have been undertaken to test the influence of solvent polarity on the lowest excited singlet state of the tertiary amines. The absorption maxima were red-shafted slightly, and the emission maxima were red-shafted strongly, which showed all of the three compounds were found to be essentiallyππ* in character, which makes for the formation of triplet-exciplex state and the subsequent reactions,?known as photo-reduction and hydrogen-abstraction.

本文借助光谱检测的手段测试了新合成的增感剂的光物理化学性能，利用荧光发射光谱和紫外吸收光谱测试了溶剂极性对叔胺的最低激发单重态的影响，实验结果表明叔胺的紫外最大吸收波长随溶剂极性的增强产生轻微的红移，荧光最大发射波长随溶剂极性的增强产生明显的红移，表明三种叔胺的最低激发单重态具有ππ*跃迁的特性，这对于激态复合物的生成以及其后的光致还原反应和提氢反应的发生都非常有利。

Secondly, considering the complexity and heterogeneity of rock-like materials, two new models, namely the Inner Open Sliding Crack Model and the Single Wing Crack Model , are proposed. The two new models and the well-known Sliding Crack Model are consolidated as Zigzag Crack Model in this dissertation.

第二，针对岩石类材料的复杂性和非均质性提出两种新的模型：内张型滑动裂纹模型和单翼滑动裂纹模型，并将这两种模型和经典滑动裂纹统一为锯齿形裂纹模型。

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。