四体的

For 2,2,4,4-tetrachloropentane,the energy of the conformer with gauche-gauche arrangement is lower; For 2,2,4,4,6,6-hexachloroheptane,the conformer with trans-gauche-trans-gauche arrangement is stable.

结果表明，对于2，2，4，4-四氯戊烷，采用gauche-gauche排列的旋转异构体的能量较低；2，2，4，4，6，6-六氯庚烷旋转异构体中，采用trans-gauche-trans-gauche排列的构象能量较低。

The fourth section of the Mass is the Eucharistic Prayer.

第四部分的群众性，是圣体圣事的祷告，本节开头序言中，介绍祈祷结束与 sanctus ，然后按照中央圣体祈祷，或佳能，其中载有叙事的耶稣'学会感恩祭。

Dot plot image of DNA fluorescence could form region of diploid and tetraploid in integrated cell.

结果显示：结构完整的细胞DNA的荧光点图形成二倍体、四倍体的区域。

Dot plot image of DNA fluorescence could farm region of diploid and tetraploid in integrated cell.

结果显示：结构完整的细胞DNA的荧光点图形成二倍体、四倍体的区域。

The oligomerization of isoprene with titanium tetrachloride as catalyst and alkylaluminium chlorides as promotor was studied, and especially the effects of the reaction conditions on the synthetic activity and selectivity of dimer and trimer were investigated in detail.

研究了以四氯化钛为主催化剂，以烷基铝为助催化剂催化异戊二烯的低聚反应，详细考察了各种反应条件对催化合成二聚体及三聚体的活性和选择性的影响。

Reaction of α,α,α,α-tetra (o-aminophenyl) porphyrin with isonicotinic acid yields the ligand 1b bearing two coordination sites whose structure has been verified by IR、UV-Vis、〓H NMR and MS spectra.

以α，α，α，α-四卟啉为母体，经过与异烟酸缩合反应得到具有两个配位位置的配体1b，配体的结构经过IR、UV-Vis、〓H NMR、MS验证。

Through special processing of the dipme-ter log date combined with core observation and conventional log data, the authorsverified the model of dipmeter interpretation, determined successfully the beddingtypes of sandbody and the direction of paleocurrents and indicated the direction ofsandbody extension and thickening as well as the features of deposition and distri-bution of four sedimentary microfacies in the Shasanzhong Submember of Machang.

通过地层倾角资料进行特殊处理，结合岩心观察、常规测井资料，验证了倾角解释模式，成功地确定了砂体的沉积层理类型、古水流方向，指出了砂体延伸和增厚方向，阐明了下第三系沙河街组沙三中亚段四种沉积微相的沉积和分布特征。

Our data demonstrate that m-NAD-ME has more conformations than proposed by current model, and tetrameric reorganization may be involved in the transformation between these conformations.

我们的实验结果显示人类粒线体苹果酸脢可能具有比目前所知还要多的构型数目，而且这些构型可能和四聚体的重组有关。

Chloroplast size was bigger and grana stack was thicker in tetraploid than that in diploid.

四倍体的叶绿体的长度和宽度均显著高于二倍体，基粒片层加厚，结构致密有序。

The electronic spectra of C70H2 have been studied, of which the characteristic absorptions are consistent with the experimental results.

在此基础上预测C70F2和C70Cl2的稳定性和电子光谱，表明C70F2四种异构体的稳定性顺序与C70H2一致，而C70Cl2则以21， 42-异构体最为稳定。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。