二聚体

The thermolysis of the isomerized products derived from norbornadiene-coordinated carbonyl iron complexes gave two sorts of the thermolytic products based on different substituents on the olefin ligands. One is the corresponding diiron dimer complex, and the other is the complex in which the C-C bond of the cycloolefin ligand is broken.

以降冰片二烯三羰基铁络合物衍生出来铁卡宾络合物的异构化产物的热解，随着烯烃配体上取代基的不同，而分别得到了络合物发生二聚和烯烃配体发生碳碳键断裂的两类热解产物。

A novel isomer of furazano energetic compound 3,4-diaminofurazanofuroxan was synthesized by the dimeric ring-close reaction of transitional intermediate 3-amino-4-cyanofurazan oxide after the energetic compound 3-amino-4-chloroximinofurazan was treated with diluent alkali at low temperature, The yield of DAFF isomer could be over 66.3% and its single crystal was cultivated.

将含能化合物3-氨基－4-氯肟基呋咱在低温下用稀碱处理后发生过渡中间体3-氨基－4-氰基呋咱氧化物的二聚关环反应合成了新型呋咱类含能化合物3，4-二氨基呋咱基氧化呋咱异构体，产率达66.3%。

However, when occurring in Mesozoic remelted granite, pyrite is featured mainly by high gold content in pentagonal dodecahedron and in its complex; low content in cubic pyrite; Au/Ag ratio between 1-2; both N and P types of pyrite present in most deposits and P type only in a few deposits.

产于中生代重熔花岗岩中时，黄铁矿以五角十二面体居多，五角十二面体及其聚形含金较高，立方体含金性较差；Au/Ag比值在1-2之间，As的含量较高(＞600×10〓)；Co、Ni的含量则较低，一般为10n×10〓；热电性以既有P型又有N型的P、N混合型为特征，少数金矿床表现为单一的P型。

The study indicated that, with SnCl22H2O and TSA as the catalyst, the comparatively appropriate reaction conditions were as follows: the catalyst content was 0.5% to OLLA, polymerized at 180℃ for lob under a system vacuum of 0.98 MPa.

研究表明，较为适宜的工艺条件为：以二水合氯化亚锡(SnCl22H2O)和对甲基苯磺酸为催化剂，且SnCl22H2O相对于乳酸预聚体的质量比为0.5%，真空度－0.98MPa，温度180℃，反应时间10h。

Oligostilbenes are a type of compounds with complex structures and multi-faced bioactivities, polymerized from stilbene monomers.

二苯乙烯类低聚体是由二苯乙烯单体以不同方式聚合而成的一类结构复杂，具有多种生物活性的化合物。

Trifluoromethyl-3-heptadfluoroisopropyl-2-perfluoropentene-4-(N',N'-dimethylamino propyl) imino was prepared by the reaction of hexafluoropropene timer with N,N-dimethyl propanediamine in the molar ratio 1:1.0 at room temperature for 8h, and the structures of VIII were identified by IR and NMR spectra.

以六氟丙烯三聚体与N，N-二甲基丙二胺为原料合成叔胺2-三氟甲基-3-七氟异丙基-2-全氟戊烯-4-(N'，N'-二甲胺丙基)亚胺，利用红外光谱和核磁共振确定其结构，并通过对合成条件的考察得其最佳合成条件：乙醚为溶剂，碳酸钠为缚酸剂，摩尔投料比为1：1.0，在室温下反应8小时。

The aqueous polyurethane prepolymer was prepared through step-growth polymerization of diphenylmethane diisocyanate with polyester glycol and dimethylol propionic acid, which was then neutralized by triethylamine to form the stable transparent aqueous polyurethane dispersion.

以二苯基甲烷二异氰酸酯、聚酯二醇、二羟甲基丙酸等为原料合成了水性聚氨酯预聚体，用三乙胺中和制备了水性聚氨酯的透明乳液。

One protein band, which was named as abalone triploid special expression protein, was found to be distinguishingly existed in one to six years old triploid abalone by PAGE analysis. While in Pacific oyster and Zhikong scallop, there is no special expressed protein could be observed among diploid, triploid or tetraploid individuals.

用常规聚丙稀酰胺凝胶电泳技术研究发现皱纹盘鲍的二倍体和三倍体个体中存在稳定的差异表达蛋白质，命名为a-TSP；在长牡蛎的2n、3n、4n之间，及栉孔扇贝的2n和3n之间未获得类似的差异表达蛋白。

In this part of dissertation, the cure reactions of PGA withhexamethylene diisocyanate isocyanurate were investigsted byFTIR, DSC and gel fraction.

本文用FTIR、DSC和凝胶含量的测定等方法，对聚丙烯酸环氧丙酯和六亚甲基二异氰酸酯三聚体的固化反应进行了研究。

The cure reactions of ternarysystem containing poly, poly and HDI isocyanurate, and the effect of the ratio ofPGA/POH on the thermal, mechanical and surface properties of curedresin have also been examined.

本文还研究了聚丙烯酸环氧丙酯、聚丙烯酸羟丙酯和六亚甲基二异氰酸酯三聚体的反应及三元反应体系中PGA／POH的不同比例对交联后树脂的热性能、力学性能及表面性能的影响。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。