四体的

Autotetraploids from diploidy leaves of Paulownia elongata on the double layer MS media supplemented with 0.1 mg/L NAA and 15 mg/L BA(optimal organogenetic medium to the leaves of diploidy seedlings) with different colchicines concentrations were induced,chromosome numbering of the plant root tip cells and DNA content analysis of the leaf single cell were used to analyse the autotetra ploids.

在含不同浓度秋水仙素的MS+0.1mg/L NAA+15mg/L BA双层培养基上进行兰考泡桐四倍体植株诱导试验，并通过变异植株根尖细胞染色体观察和叶片单细胞DNA含量测定进行倍性分析。

Stratum near the bridge foundation is rhyolite porphyry in late Jurassic period. A little of slope eluvium exists on the top of the mountain, which is 200 m long and 80 m wide, and its all sides face to sea. The integrality of rock mass of the mountain is relatively poor because of the effect of some faults and other structural fissures.

桥基所在地层为晚侏罗系流纹斑岩，山体顶部有少量坡残积层，地形上该山体平均长200m、宽80m，四面临空，且受数条小断层及共他构造裂隙的影响，山体岩体完整性较差。

Two ends of the mixing axis that articulates with the mixing silo are loaded quadruple axle end seal device.

筒体与轴两端的相连处装有四重轴端密封装置。

The characteristics of tetrad was that the nucleus and Golgi bodies being in the active state.

四分孢子的显著特征是细胞核和高尔基体呈活跃状态。

Cut four 37-inch lengths of hardware cloth.

削减四个37英寸长的硬体布。

It is indicated that the acetate anion and the weak organic alkali hexamethylenetetramine play the critical role in the formation of the layered precursors at the beginning of the process.

结果表明，在上述反应中醋酸根阴离子和弱有机碱六次甲基四胺对前驱体和ZnO纳米带的形成起了关键作用。

Using inorganic aluminous salts as precursors and hexamethylenetetramine as the catalyst, alumina nanonpowder was fabricated by sol-gel procedure and then incorporated in the preparation of body batch for thickly-glazed, thin-bodied celadon wares.

以无机铝盐为先驱体，六次甲基四胺为催化剂，采用溶胶－凝胶法制备了纳米氧化铝粉体，将纳米氧化铝粉体应用于薄胎厚釉青瓷瓷胎中，研究了粉体对青瓷瓷胎的增强作用。

Genetic analysis with reciprocal crosses between gls and Kas plants indicated that gls possesses a recessive mutation in a single nucleotide locus.

遗传分析表明：gls突变体为单基因隐性突变；初步定位结果表明，GLS基因位于第四条染色体短臂上靠近0端的16万碱基附近区域。

There are four parts:In Part 1,an introduction of fluorescence of lanthanide complexes was given.

第四节中测定了羧酸铜二聚体与2—羟基吡啶中性加合物的结构。

At present, the late-flowering mutants are fallen into four pathways: photoperiod pathway, vernalization pathway, autonomous pathway and GA pathway according to factors described above.

目前，一般按照对以上因素的反应将晚花突变体归于四条开花调控途径：光周期途径、春化途径、自主途径和GA途径。

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。