配极体

The metal catalyst complex has an N-heterocyclic carbene ligand, and thus, is excellent in thermal stability and reactivity.

所述金属催化剂配合物含有N-杂环卡宾配位体，因此，其具有极好的热稳定性和反应性。

The polar and egg nuclei of the female gametophyte are genetically identical.

雌配子体中的极核和卵核遗传上是同一的。

The energy levels of free metallic ion were calculated with a 13 parameters model including the 2-body and 3-body interactions. The Stark energy levels of crystal field were calculated using the model proposed by Newman based on 1 electron orbital approximation The f-f oscillator strength calculation includes the contribution of electrostatic-induced, ligand polarization, vibronic-induced, magnetic dipolar transitions.

其中，自由f离子能级计算采用包括双电子与叁电子组态相互作用的二三参数模型，晶体场Stark分裂计算采用单电子轨道近似，用Newman角叠加模型计算晶体场参数。f-f跃迁振子强度计算包括静电诱导偶极跃、配体极化偶极跃、振动诱导电偶极跃迁及磁偶极跃迁的贡献。

As with the male gametes the remaining cytoplasma binding serves the synchronization of the division and maturation of the cells: just as for the 1rst polar body at the time of the termination of the 2nd meiosis.

和雄性配子一样，这些残留的细胞质连接有助于细胞分裂和成熟的同步化：就像第二次减数分裂结束时的第一极体一样。

The results showed that : 1 During nonbreeding season, the giant panda′s ovary was still rich with large and small follicular oocytes, and the large follicular oocytes could be matured in vitro; 2 The mean diameter of the oocytes was (141±6.7)μm and lots of cortical granules contained in the cytoplasm of oo...

结果表明∶（1）在非繁殖季节，大熊猫卵巢中小腔及大腔卵泡卵母细胞仍较丰富，其大腔卵泡卵母细胞可在体外培养成熟；（2）大熊猫的卵母细胞平均直径为（141±6.7）μm ，其胞质富含卵黄颗粒；（3）自配 PandaI I号获能液（含丙酮酸钠、肾上腺素等）可使大熊猫精子有效获能；（4）大熊猫卵母细胞体外受精后，经培养可观察到第2 极体，有的受精卵开始发生卵裂。

Thus it is obvious that the weak homology existedamong genomes A, B, D and 〓. However, the rare unreduced gemetes and near-unreduced ones with the loss of several chromosomes could be produced by the highlyunequtional division of univalents at the first meisis and the normal second division,which gave the F1 hybrid the partial fertility.

但通过第一次减数分裂时单价体的极不对称的分离及正常的第二次分裂，可形成少量未减数配子和丢失了少数几条染色体的近未减数配子，使杂种〓表现部分可育性。

The design and synthesis of effective chiral ligands play important roles in transition-metal catalyzed asymmetric reactions.

在金属介入的不对称催化反应中，手性配体的设计合成扮演着极重要的角色。

The purpose of the paper is to build a module of small molecular receptor fragments charactering normal VLDL-R binding function and study the mechanism of VLDL-R binding to ligand.

建立具有正常极低密度脂蛋白受体结合功能的小分子受体片段模型并借助此模型研究VLDL受体与配体结合的作用机制。

It is shown from study results that the soluble iron has a strong controlling effect on the phytoplanktonic growth, and most of soluble iron is chelated with ligand such as siderophore with high affinity to Fe 3+.

研究表明，可溶性铁对浮游植物生长有很强的控制作用，大部分可溶性铁是同具有极强铁亲和力的配位体螯合在一起的，如铁载体。

61Ppm, REE distribution patterns of apatite standarded by NASA are classified into two types: The one is concave,"hat-shaped" REE pattern which is slightly enriched in intermediate REE and has a weak or even wanting Ce anomaly. To which, the sandy phosphorite of Jile is representative; the rest REE pattern is shown by more or less complete curve, although distinct Ce negative anomaly or weak Ce positive anomaly is shown up well. The stromatolitic apatite is the representative of this type.

其稀土元素北美页岩标准化配分型式主要分为两类：一类为中稀土略显富集的帽状形态的稀土元素配分型式，微弱的铈负异常或无铈异常，以极乐矿段砂屑磷块岩样品最为典型；另一类为轻稀土、中稀土和重稀土自然分异的三段弧形折线衔接而成的稀土元素配分型式，铈负异常较明显或微弱的铈正异常，以叠层石柱体磷灰石最典型。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了