生物样品

Such an odd looking creature, it is no wonder that when the first sketches, descriptions and specimens began arriving in Britain from Eastern Australia in 1798 and 1799, they were initially thought to be hoaxes, indeed some thought it a joke played by an Asian taxidermist.

这种生物外表如此奇怪，难怪当第一批的画图，描写和样品1798到1799年从澳大利亚东部开始抵达大不列颠时最初被认为是恶作剧。有人认为这是某个亚洲动物剥制师开的玩笑。

It can beused to measure permittivity thermogram (the lowest test temperature -100℃) and permittivity spectrum (the test frequency range from 50 Hz to 1 MHz) 0.9% NaCl solution as a sample was tested, the results indicated that the system can meet the test requirements, and can be used to study the dielectric characteristics of biological materials.

以生理盐水为样品的实验表明，由该系统完成的介电温谱和介电频谱测量结果能够正确反映介质在不同条件下的介电特性，可以满足生物材料介电性能测试要求。

The results show that the potential application of the proposed method to three-dimensional non-destructive imaging of biological samples.

实验结果表明，本方法具有用于生物活体样品三维无损成像研究的潜力。

Based on the three bottom trawl surveys in adjacent waters of Changjiang estuary in June, August and October 2006, the composition and variation of the functional groups of high trophic level communities in the waters were studied.

通过对2006年6、8和10月在长江口及邻近海域3次调查采集样品的分析，对该水域的高营养层次生物群落的功能群组成及其变化进行了研究。

In this thesis, rat-tails were used as experiment objects, there are 40 slices including transverse and longitudinal, HE-dyed and undyed. Excited by femtosecond laser, the changes of backward SHG and TPEF versus sample preparation, excitation wavelength, excitation power, penetration depth and so on were observed by two-photon laser scanning confocal microscope, effect factors of backward SHG and TPEF and differences of both were discussed and compared, and related comments were also presented.

以鼠尾组织作为实验对象，共40个切片，分为横向和纵向、HE染色和未染色四组，采用飞秒激光器作为激发光，用双光于激光扫描共焦显微镜(two-photon laser scanning confocal microscope， TPLSCM)观察和分析了样品在不同的制备方式、激发波长、激发功率、扫描深度等条件下的背向SHG和TPEF的变化曲线，讨论和比较了生物组织的背向SHG和TPEF的影响因素以及二者之间的异同，并尝试对实验现象做出了一定的解释。

F. Bhandari. The healthy leaves were surface sterilized following a procedure modified from Rodrigues. The total genomic DNA were extracted using CTAB method with modifications.

采用改良的Rodrigues组织培养表面消毒技术和CTAB法提取植物样品总DNA，利用真核生物通用引物LH2/Sm73扩增rDNA ITS目的片段，正交法优选ITS-PCR扩增条件。

Based on soil magnetism investigation on one of area in Hebei province tibility data to describe the soil magnetic background of plain area in Hebei province, and to study the method of biomagnetism application in agriculture.

通过对河北省平原区某地土壤样品的磁性测试，试图分析河北省平原区的土壤磁性背景，探讨生物磁学农业应用的途径。

The results showed that the total mercury concentrations of Elops machnata was up to 3.26±0.70ppm. The concentrations of total mercury for Mugil cephalus was only 0.30±0.06ppm. However, biomagnification is not obvious.

在鱼体样品分析结果中总汞浓度以海鲢最高达3.26±0.70ppm，鲻最低为0.30±0.06ppm，甲基汞浓度以海鲢最高达3.08±0.72ppm，鲻最低为0.25±0.05ppm，显示该区鱼体遭受污染，其生物对於底泥之累积因子为0.1297。

Degradation test in vitro was carried out in phosphate buffer solution (0.1M, pH7. 4) at 37 ℃. The buffer solution was changed daily. Degradation test in vivo was implanted the sample to subdermal in adult ICH rat in the scapular area lateral to the dorsal midline. At suitable time the samples were recovered. Molecular weight changes in surface layer and bulk of polymer sample were measured by GPC and weight loss was determined gravimetrically. It was found that the degradation behavior can be regulated by changing the composition of copolymers. The critical compositions from surface to bulk degradation behavior for PGCA, PLCA, PLMCA, PLDCA systems were 15-20, 20-30, 30- 40, 40 of mol percent GA or LA unit in copolymers, respectively. The degradation behavior of PGCA, PLCA, PLMCA, PLDCA systems were compared and analysed. Some factors influencing the degradation character, such as copolymer composition, hydrophobicity, crystallinity and enzyme affect etc. played important role.

体外实验中材料降解环境为37℃，0.1M，pH7.4磷酸缓冲溶液，每天换液，定期取样；体内实验中将聚合物试样埋置于ICH小白鼠背部肩胛骨皮下部位，定期处死小鼠，取样，将体内体外样品进行重量损失及试样内外层分子量变化测定，分析各聚合物试样降解行为特性，实验结果证明，改变共聚物组成，可以调节各聚合体系降解行为特性，对PGCA，PLCA，PLMCA，PLDCA共聚体系，交酯摩尔百分含量15-20％，20-30％，30-40％，40％分别为各体系内降解行为特性由表面降解型向本体降解型过渡的临界转折点，交酯含量较低的聚合物不同程度地表现表面降解行为特性，论文对各共聚体系体内外降解行为作了分析对照，例如共聚物组成对材料降解速度与降解行为的影响；生物体内酶对降解行为的影响；材料亲疏水性，聚合物链段结晶行为及碳酸酯结构对材料降解行为的影响等，得出交酯/环碳酸酯共聚体系降解行为一些共性和规律。

By means of GC-MS-Ms method, the multiple series of age-related and taxon specific biomarkers are tested in source rocks and oil samples from Liaohe oilfield and Tarim basin, which are hard to be detected by conventional GC-MS method. They are steranes, methylsteranes, Tricyclic and tetracyclic diterpanes, methyl hopanoid alkanes and hexacyclic hopanoid alkanes, etc.

利用色谱－质普－质普方法在辽河与塔里木盆地源岩和原油样品中，检测出了多个系列时代相关及特定种属生物标志物，包括：降胆甾烷系列、甲基甾烷及甲藻甾烷系列、三环二萜烷及四环二萜烷系列、六环蒮烷及甲基藿烷系列等等，这些化合物很难用常规GC-MS形方法检测到。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐