四体的

The results indicate that the pHbs modified with PEG and DBBF have more stable tetrameric conformations with a molecular weight of 107 kD. Their oxygen half-saturation pressure (P50) is around 3.33 kPa which approximates the physiological P50 of human red blood cells.

结果证明，联合修饰产物具有稳定的四聚体结构，分子量达107000，半饱和氧分压P50在3.33KPa左右，接近於生理条件下人体红细胞的P50值。

In contrast to the granular shape papillaes around the stomata and less density of trichoma on costal zones in tetraploidies of O. officinalis, the triangle and overarching shape papillaes, and denser trachoma were observed in diploidies.

在O。 officinalis中，四倍体有粒状气孔器外围乳突和脉带表皮毛较少，二倍体细胞型具有三角形拱状排列的气孔器外围乳突和较密集的脉带表皮毛；而在O。

According to the above results, feather, tryptone, yeast extract as well as incubation time and temperature were selected for further studies by RSM. Data obtained showed the maximal biomass production and keratinase activity occurred at above 96 h.

根据上述结果选择feather、tryptone、yeast extract外加两个物理因子进行第一次的RSM分析，结果发现欲得到较高的角蛋白酶活性与菌体产量，其培养时间需超过四天以上。

About 11 different kinds of microphytoplankton assemblages which belong to four types are found in the core of the Du432 well.

在杜432井的岩心中共发现了11种不同的微体浮游组植物组合，分属于四种组合类型。

An optimum design for the complex body formed together with the volute casing, base ring and cement foundation of a hydraulic turbine is made by the gradient method and a program is developed on the basis of finite element analysis with the plane and shell element, body element, boundary element and pseudo element.

本文对由水轮机蜗壳、座环和水泥基础所构成的复杂组合体，在采用板壳元、块体元、边界元和伪单元等四类单元进行有限元分析的基础上，选用最速下降法研究了优化设计过程，并编制成程序系统。

It also reported that cells treated with edelfosine came through the whole cell cycle without nuclei cleavage, and cells were blocked in G_0/G_1 and subsequent formation of quadplex or octploid nuclei. However, the mechanism still is unknown that edelfosine inhibits cytokinesis.

也有报告指出，依地福新处理过的细胞能经历完全的细胞周期，但不能进行分裂，使细胞聚集在G_0／G_1期，形成四倍体或八倍体细胞。

In-situ synthesis process was used to prepare copper nanoparticles and coppernanoparticles-polyethylene glycol oil solution by reduction of copper acetate by glycol in polyethylene glycol containing amido ligand as dispersant.

采用原位合成法以聚乙二醇400作为反应介质，以氢氧化钠和氨基配体作为分散剂，用乙二醇还原六水合乙酸铜制备出纳米Cu粉和纳米Cu聚乙二醇溶液，用X射线衍射仪和透射电子显微镜表征其结构，在四球摩擦磨损试验机上评价了含不同质量分数纳米铜粉的聚乙二醇溶液的摩擦磨损性能，并与分散剂进行对比。

Meat-obtain ratios are considerable different because of the size difference of 4 kinds of freshwater fish, Grass Crap highest, which was 34.79%, Silver Carp and Bighead 24.6%, Crucian 15.56%.

鲢鱼、鳙鱼、鲫鱼和草鱼四种淡水鱼的鱼体大小不同，采肉率存在明显差异，其中草鱼的采肉率最高(34.79％)，鲢鱼和鳙鱼次之(24.6％)，而鲫鱼采肉率最低(15.56％)。

Four steady state microbial communities were established in chemostats using inocula from human feces. Three chemostats were exposed to enrofloxacin 0.2, 2, and 20 mgL^(-1, respectively for 8 days; one served as a no-drug control.

四套接种人体肠道菌群的离体恒化器模型中连续添加0、0.2、2及20mgL^(-1)恩诺沙星8d，采用细菌培养计数和PCR-DGGE方法研究细菌数量、耐药性、菌群结构和定植抗力的变化。

This article summarized the application of biotechnology breeding in fruit trees from embryo culture, anther and pollen culture, protoplast culture and cell fusion, gene engineering breeding.

本文从胚培育种、花药和花粉培养育种、原生质体培养与细胞融合、基因工程育种四个方面综述了生物技术在果树育种上的运用，并对其未来的发展作了展望。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。