小胞的

The typical apoptotic morphological features appeared in MUTZ1 cells treated with 4 mmol/L VPA for 72 hours. Pyknosis of cells and nuclei, disintegration of nuclear chromatin and apoptotic body could be observed by light microscopy. Aggregation and margination of nuclear chromatin, concentration of plasm, increment of density and chromatin mass of irregular size could be observed by transmission electronmicroscope. The flow cytometric analysis indicated that the VPA could induce cell apoptosis, apoptosis rate increased in dosedependent manner, ratio of cells at G0/G1 phase increased and ratio of cells at S phase decreased in dosedependent manner, the cells were arrested at G0/G1 phase.

结果显示： VPA对MUTZ1细胞的生长抑制作用呈现时间和剂量依赖性；经4 mmol/L VPA处理MUTZ1细胞72小时后，细胞呈现典型的凋亡形态特征，光学显微镜下可见凋亡细胞胞体固缩、核固缩、核碎裂及凋亡小体；透射电子显微镜下可见凋亡细胞核染色质边集、胞浆浓缩、密度增加，胞浆内大小不规则的染色质团块；流式细胞术结果表明，细胞凋亡率随着VPA浓度的增加而逐步增高，G0/G1期细胞比例随着VPA浓度的增加而逐渐增多，S期细胞比例逐渐减低，细胞被阻滞在G0/G1期。

The typical apoptotic morphological features appeared in MUTZ-1 cells treated with 4mmol/L VPA for 72hours. Pyknosis of cells and nuclei, disintegration of nuclear chromatin and apoptotic body could be observed by light microscopy. Aggregation and margination of nuclear chromatin, concentration of plasm, increment of density and chromatin mass of irregular size could be observed by transmission electronmicroscope. The flow cytometric analysis indicated that the VPA could induce cell apoptosis, apoptosis rate increased in dose-dependent manner, ratio of cells at G0/G1 phase increased and ratio of cells at S phase decreased in dose-dependent manner, the cells were arrested at G0/G1 phase.

结果显示：VPA对MUTZ-1细胞的生长抑制作用呈现时间和剂量依赖性；经4mmol/LVPA处理MUTZ-1细胞72小时后，细胞呈现典型的凋亡形态特征，光学显微镜下可见凋亡细胞胞体固缩、核固缩、核碎裂及凋亡小体；透射电子显微镜下可见凋亡细胞核染色质边集、胞浆浓缩、密度增加，胞装内大小不规则的染色质团块；流式细胞术结果表明，细胞凋亡率随着VPA浓度的增加而逐步增高，G0/G1期细胞比例随着VPA浓度的增加而逐渐增多，S期细胞比例逐渐减低，细胞被阻滞在G0/G1期。

No primitive blood cells were observed in liver, which implies that the liver was not the hemopoietic organ in C. mydas. The development of erythrocytes includes 5 stages: primitive, early, middle, late, and mature. The body sizes of these cells increased first, then decreased, and increased in the end. The development of granulocytes includes 5 stages also: myeloblast, promyelocyte, meddle immature granulocytes, late immature granulocytes, and mature granulocytes. The body sizes of them decreased; and the sublobe of the nuclear may indicate the aging.

红血细胞的发育经历了5个阶段：原红血细胞、早幼红血细胞、中幼红细胞、晚幼红血细胞和红血细胞等阶段，其胞体体积经历了由小到大，由大到小、再到大的发育过程；粒细胞的发育经历了5个阶段：原粒细胞、早幼粒细胞、中幼白细胞、晚幼白血细胞和白细胞等阶段，胞体体积均由大到小变化，核分叶可能是粒细胞的衰老的标志；淋巴细胞和单核细胞的发育各经历了3个阶段。

The extent of vesiculation was reversible along the time course .the mortality was low even under the constant presence of PCE for six days. At the end of the experiments ,the formerly vesicular cytoplasm was replaced with well-developed smooth endoplasmic reticulum ,a cytoskeletal system ,and numerous regeneration organelles .

取而代之的则是产生大规模的自我吞噬及发泡反应的现象﹐培养到第六天时﹐不但发泡反应几乎完全消失﹐细胞质中更且充斥了极发达的胞器﹐尤其是数量极多的平滑内质网﹐细胞骨架系统﹐以及不同型态之再生性胞器﹐另外在整个为时六天的PCE处理下的细胞之共同特徵是难以计数的胞饮小泡﹐表示细胞非常活跃地进行著物质交换。

An electron microscopic study of resting cysts and their organelles in Paraurostyla weissei has revealed that:⑴The cyst wall is composed of four layers named from outside to inside:ectocyst,mesocyst,endocyst,and granular layer.The granular layer is delimited by the cell pellicle.Both the layer and pellicle contain a few vesicles.

为研究纤毛虫休眠状态下细胞的分化及其胞器的特征，本文以透射电镜术显示，魏氏拟尾柱虫休眠包囊中，颗粒层壁内有小泡，表膜位置也偶见小泡样结构，大部分线粒体以多个相互聚集在一起，自噬泡将线粒体等胞器包裹在内经历消化过程，细胞内膜系统十分发达。

While films grow by Stranski-Krastanov mode when they grow on SrTiO〓(001) by d. c. magnetron sputtering at optimal deposition conditions. If the substrate miscut from the (001) surface of about 1°~3°, YBCO thin film show step-flow growth mode.

所有这些生长模式都存在YBCO的c轴方向一个或几个原胞长度的高度的台阶，原胞优先生长在台阶处，薄膜生长的最小单元是一个原胞。

The mature egg cell was an inactive cell with only a few polysomes. At the early zygote stage, a large number of ribosomal precursors were produced by the nucleolus, and many polysomes appeared in the cytoplasm, which suggests a high level of metabolism. Zygote at the dormancy stage had a small nucleolus and marked decrease in ribosomes, as shown by a few polysomes, which suggests decreased metabolism. Zygotes in the prophase of mitosis and two-celled proembryo became active again in metabolism, for a prominent nucleolus, high density of ribosomes and increased number of polysomes in the cytoplasm.

结果如下：在成熟卵细胞中多聚核糖体数量不多，且细胞代谢活性较弱；初期合子内，核仁大量合成核糖体前体物质，胞质中多聚核糖体数目众多，细胞代谢活性较强；休眠期合子的核仁变小，胞质中核糖体数量急剧减少，仅有少量多聚核糖体，细胞代谢活性较弱；合子分裂前期和二细胞原胚期，核仁显著，胞质中核糖体的密度增加，出现大量多聚核糖体，细胞代谢活性较强。

At the age of 19 weeks, we have observed ciliated-mucous cells, some cells presented with mucous granules in the supranuclear cytoplasm and a ciliating border with short growing shafts, while the other cells presented with large mucous granules as well as compound cilia.

小粘液颗粒细胞呈柱状，胞浆顶部含有少量球形的粘液颗粒，细胞表面有短小的微绒毛，细胞核大呈椭圆形，胞浆电子密度高，胞浆下部有粗面内质网和线粒体，核上部有高尔基体。

Silicon in straw mainly exists as silica cell in polyoliths, silica cells were of unform size and about 15μm diameter. Silica cells as intact particle removed from the straw, then pricipit on the fibers with little particles than on the straws.

硅在稻草中主要以粒径为15μm的硅晶胞形式存在于植物外层，在制浆过程中硅晶胞作为整体溶脱后再以相对小的硅晶胞附著在纤维上。

Results of the experimental groups: Comparison with the control groups, in 6h and 8h groups eminences of ependymal cells with cobblestone-like appearance were seen, their microvilli were further richer, and a number of microholes could be found on their base. In body part of SFO cell membrane of some ependymal cells were broken completely, their cytoplasm was no longer seen, and cell nucleus located at one side of the cell, 5-7μm in diameter and dividing lobe-like in shape. Beside those cells some ependymal cells appeared many folds on the top of surface. In 2h and 16h groups the observation results seemed no significant differences from the corresponding control groups.

实验组结果：与对照组相比，在6小时和8小时实验组中，可见成团的鹅卵石状室管细胞隆起于表面，微绒毛更为丰富，微绒毛根部可见到若干微细小孔，在SFO体部的一些室管膜细胞的胞膜完全破裂，胞质几乎荡然无存，仅剩胞核居于细胞的一侧，直径有5.7μm，呈分裂叶状；与这些细胞邻近的室管膜细胞表面最高处多呈现皱襞。2小时与16小时的实验组的观察结果与对照组相比未发现明显差异。

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。