无细胞的

Under light microscope, lead acetate had no effect on the cell morphology and cytoskeleton.

光镜下观察，乙酸铅对PC 12细胞的形态和细胞骨架无明显改变。

Only amitosis takes place in both epidermal and hypodermal cell s of Firmiana simplex during cell division.

梧桐表皮细胞和下皮细胞的分裂只见无丝分裂而没有有丝分裂。2。

RESULTS: There was no statistically difference in astrocyte morphology between cerebral infarct group and electroacupuncture treatment group.

结果：免疫组织化学方法显示电针对脑梗塞缺血半影区星形胶质细胞的数量、细胞面积比与对照组相比差异无显著意义。

The distribution density of oil cells, the distribution types of oil cells and mucilage cells and their localization in the mesophyll are of some taxonomic value at the specific level in the Lauraceae.

油细胞的分布密度、油细胞与粘液细胞是否共存、是否单独存在或无，以及其具体分布部位等方面在种间存在一定的差异，这对于属以下等级的区分具有一定意义。

Results After six passages in BHK-21 cells, cytopathic effect was observed by microscopy. The rescued virus was rejuvenated once in unweaned mice, and then came back to cell passage. We found that the poly tract of rescued virus was shortened when the virus was passaged twice in BHK-21 cells. Although the data of LD50 in mice and TCID50 in BHK-21 cells showed that the virulence and infectivity of genetic engineering viruses were lower than its parental virus, no significant difference was observed between the genetic engineering viruses with the different length poly tract.

我们发现，基因工程毒在BHK-21上连续传代至第6代时，可见明显的致细胞病变效应(cytopathic effect，CPE)；在经过一代乳鼠接种之后再重新适应到BHK-21细胞的过程中，poly区段出现了缩短现象；乳鼠致病性试验和BHK-21细胞TCID50测定结果表明，尽管基因工程毒与母本毒相比毒力偏低，但含有不同长度poly的基因工程毒之间并无显著差异。

In situ apoptotic cell DNA fragment detection shows two different type of fluorecin-positive images: a narrow-thin dense nucleus labeling within the the shuttle-like shrink cancer cell under the shrink cancer nest (0.5μg/ml propidium iodide background stain) and a cluster-like labeling.

治疗过程中，细胞毒性T细胞的密度有动态变化，表现在化疗用药过程中和结束后早期T细胞数量未见增多，甚至有所减少，而续用rhuIL-2和Cim后，实验治疗组三例的数量快速增加，同时浸润区域中的癌细胞数量明显减少，对照治疗组一例无此变化；5。

MUC3 apomucin and its mRNA were mainly situated in the cytoplasms of goblet cells and columnar-type cells of duodenum and column.But no reactive signal of MUC2 and MUC3 genes' product was found in the mucous droplets.

MUC3核粘蛋白及其mRNA主要存在十二指肠和结肠的杯状细胞和柱状细胞胞浆内，而杯状细胞的粘液滴内无MUC2、MUC3基因产物的阳性反应信号。

When the cytotoxic activity of these two types of TNF was compared, the synthesized 26kD TNF was found to exert its effects only in the presence of microsomal membranes.

比较这两种体外表达产物对靶细胞的细胞毒效应，结果表明，只有在微粒体存在时所合成的26kD TNF具有细胞毒活性；而无微粒体存在所合成的裸26kD TNF不显示杀瘤效应。

Channel subunits, nearly same property as adults at P16 murine retinae, is in müller cells, not in RPE. There is no difference between species. The Kir7. 1 channel subunit, nearly same property as adults at P7 murine RPE, is a major component of the apical K〓 conductance in bovine RPE.

这些结果显示，Kir2.1和Kir4.1在P〓接近成年水平，分布于视网膜Müller细胞的不同部位，在不同种类之间无明显差别，这种分布特性可能与完成Müller细胞功能-保持细胞外K〓的平衡，促进K〓的内流有重要关系。

The drugs which had relationto mdrl and MRP shoud be put aside and other resistance mechnisms shouldbe considered.9.The middle doses of radiation had not remarkable effects to the resistancegene expression of mdrl and MRP in the living cells and recured cells.

中等剂量放疗后对活细胞的耐药基因mdrl和MRP的表达影响较小，放疗后复发细胞的药物敏感性无改变，复发细胞加速生长，可能对异搏定等耐药逆转剂效果减低。lO。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。