小生物

Cytokines are small, soluble proteins with pleiotropic effects on a variety of cell types.

细胞因子是具有多种生物活性的可溶性小分子蛋白质。

Desert puddles and mud holes: Water is a preciously scarce resource for all living things in the desert.

沙漠里的水坑和泥泞的洞，对于在沙漠里所有的生物，水是很珍贵和稀小的资源。

ZWT3 Desert puddles and mud holes: Water is a preciously scarce resource for all living things in the desert.

沙漠里的水坑和泥泞的洞，对于在沙漠里所有的生物，水是很珍贵和稀小的资源。

All nature, from the smallest thing to the biggest, from a grain of sand to the sun, from the protista to man, is in a constant state of coming into being and going out of being, in a constant flux, in a ceaseless sate of movement and change.

自然中所有事物，从最小到最大，最一粒沙到太阳，从原生物到人，是处在一个不断生成和消亡状态中，不断变迁，永远不停的运动和变化中。

What I am looking for is a small to medium size biodiesel producing plant to be able to put into operation in my area.

我所追求的是小到中等规模的生物柴油生产厂，以便能够投入运行，在我的领域。

The site provides significant representation of Australia's biodiversity with ten percent of the vascular flora as well as significant numbers of rare or threatened species, including endemic and evolutionary relict species, such as the Wollemi pine, which have persisted in highly-restricted microsites.

大蓝山地自然保护区内有占世界数量百分之十的维管植物，还有许多珍稀濒危物种，是澳大利亚生物多样性的又一完美体现。该保护区内的珍稀濒危物种包括许多具有当地特色的，堪称"活化石"的进化残遗动植物，比如只在很小的特定区域内可以生存的梧莱米松树。

The phagosome is the organelle responsible for the destruction of infectious pathogens that cause such diseases as tuberculosis and salmonellosis, as well as pathogens that could be used in bioterrorism.

吞噬小体是一种细胞器，其功能是消灭侵入人体的传染性病原体，这些病原体能够引起诸如结核病和沙门氏菌病等，故能够被用作生物恐怖行动。

Methods Porcine bile duct and ureter were treated using detergent sodium dodecylsulphate and 1% Triton X-100 to prepare the acellular lumens matrix. The toxic effects of different concentrations of acellular lumens matrix extract were tested by MTT to assess the proliferation of human scarfskin fibroblasts. The cytotoxicity of the target biomaterial was graded according to the national standards. The growth manner of the human intrahepatic bile duct endothelial cells seeded on the acellular lumens matrix was studied after 20 d under scanning electron microscopy.

采用十二烷基磺酸钠、Triton X-100处理封闭群小香猪输尿管和胆管，获得去细胞管腔基质支架材料； MTT法检测基质支架材料的不同浓度浸提液对细胞增殖的影响，并按医用生物材料细胞毒性分级标准进行评级；在基质支架材料上种植人肝内胆管上皮细胞，于接种后20 d通过扫描电镜观察人肝内胆管上皮细胞在支架上的生长情况。

Most of these scatterer spacing imaging sense fine-scale spatial features of tissue microstructure. The experimental results show that the method is an effective one for ultrasonic imaging.

另外，本章还提出了基于小波变换理论的生物组织散射元间距成像的新方法，实验结果表明散射元间距成像显示了更为细致的组织微观结构的空间特性，它是一种有效的超声成像新方法。

The interaction of chemical molecules and biological ones, especially sequence specific recognition and site-specific cleavage of DNA have many applications such as in DNA sequence determinations, chromosome analyses, gene therapeutics, and recombinant DNA manipulation. So it is significant to develop artificial enzymes for the scission of nucleic acid with high activity and selectivity at normal condition.

化学小分子与生物大分子的相互作用，尤其是人工核酸定位切断试剂对DNA的切断在DNA序列测定、染色体分析、基因治疗以及DNA重组方面有着广泛的用途，因此进行人工合成核酸定位切断试剂及其与DNA的相互作用的研究具有重要的理论意义和应用价值。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。