查询词典 Four H

According to the H NMRstudy, it was found that the protons on the cyclopentadienyl ring of 〓 were not splitted, but when one proton on the cyclopentadienylring was substituted by methyl, that is in〓 complexes, thefour protons on the ring were splitted into four groups,the 〓 between the onesignal and the others is large, the total splitting is over 2ppm. The splittings werealso affected by the halides linked with the titanium, they increase according to theorder of CI, Br, I. By the study of the 〓 Sn NMR, it is found that the chemicalshifts of 〓 are present in low field. It is assume that the large space strain causesthe angles of the tin linked with ligands deviate from the normal tetrahedral anglesresults low field shift for 〓Sn. And by MS study,there were no molecular ions for 〓 complexes in the spectra. However, for 〓 when X=CI,Br,NCO and Ar is tolyl or phenyl group,there were molecular ions,but theirabundances were very small,and no that for the iodide was found.

钛上的卤素对茂环氢的裂分也有影响，依〓，Br，I顺序，卤素对茂环氢的裂分依次加大；通过对〓的研究发现，以上这些化合物〓的化学位移都出现在低场，认为大的空间张力造成的锡的键角偏离正常的锡的四面体键角是造成〓化学位移出现在低场的原因；对这些化合物质谱的研究发现，〓系列化合物得不到分子离子峰，而〓系列的化合物，当X=〓，NCO和苯环上不带取代基或只带甲基时，则出现分子离子峰，但丰度很低，而相应的碘化物和其它化合物则没出现分子离子峰。

Through the analysis of four indexes of N、S、T、H,the insect community of Trifolium repens L.

其中蚜虫、叶螨是春季昆虫群落的优势种。

In chapter four, the chiral recognition properties of one chiral calix [4] crown ether toward amygdalic acid and dibenzoyl-tartaric acid were studied by 〓H NMR,〓C NMR and UV-vis spectroscopy.

研究结果表明，手性杯[4]氮杂冠醚对二者均有一定的手性识别能力，并发现针对不同的客体，主体以不同的构象与之相互作用，证实分子识别过程中存在构象的变化。

V# _ e' ^1 H That was one reason the outfielder was in the lineup against the Tigers. Another was Damon's apparent mastery of Bonderman; with two hits in four trips on Saturday against the right-hander, Damon improved to 14-for-32 (.437 lifetime when facing him.

这是托瑞爷把大门排进对老虎的打线中的原因之一，另一个原因是大门对战棒得慢的成绩出奇地好，加上今天4支2的成绩，大门把两人对战打击率提升到4成37(32支14)。

Jeremy Bonderman was actually excellent in his last start in Cleveland (7 IP, 4 H, 2 R, 2 BB, 8 K), but before that he put together a 11.28 ERA across his previous four, all losses. Like Wang, most of that damage came in a single disaster start (Bonderman's came in Anaheim), but he still posted an 8.10 ERA in the remaining three starts from that rough patch.4 l" d7 _9 r" s. X5 p

Jeremy Bonderman上一次先发其实表现优秀(7 局， 4 安打， 2 失分， 2 保送， 8 三振)，但在那场比赛之前的4场比赛合计他的自责分率为11.28，而且通通败投，跟王小民一样，大部分的伤害来自一场悲惨的先发(在安纳罕天使主场的比赛)，但在那一场悲惨的比赛之外的其他3场他的自责分率仍然达到8.10。

Jeremy Bonderman was actually excellent in his last start in Cleveland (7 IP, 4 H, 2 R, 2 BB, 8 K), but before that he put together a 11.28 ERA across his previous four, all losses. Like Wang, most of that damage came in a single disaster start (Bonderman's came in Anaheim), but he still posted an 8.10 ERA in the remaining three starts from that rough patch.王建民加油站$ N# U5 \1 {3 }0 c* t% z R

Jeremy Bonderman上一次先发其实表现优秀(7 局， 4 安打， 2 失分， 2 保送， 8 三振)，但在那场比赛之前的4场比赛合计他的自责分率为11.28，而且通通败投，跟王小民一样，大部分的伤害来自一场悲惨的先发(在安纳罕天使主场的比赛)，但在那一场悲惨的比赛之外的其他3场他的自责分率仍然达到8.10。

I1 W/ \$ H*{3 s: u王建民加油站 That was one reason the outfielder was in the lineup against the Tigers. Another was Damon's apparent mastery of Bonderman; with two hits in four trips on Saturday against the right-hander, Damon improved to 14-for-32 (.437) lifetime when facing him.

B王建民加油站这是托瑞爷把大门排进对老虎的打线中的原因之一，另一个原因是大门对战棒得慢的成绩出奇地好，加上今天4支2的成绩，大门把两人对战打击率提升到4成37(32支14)。

Using liquid-reduction or complex-redution method,four catalysts,i.e,the Au/C,Pd/C,Pd-Au/C-T and Pd-Au/C-H were preparated and which electroanalytic activities and stabilities for the oxidation of formic acid were compares.

合成并比较了碳载Au、碳载Pd、碳载高合金化Pd-Au和碳载非合金化Pd-Au催化剂对甲酸氧化的电催化活性和稳定性。

Four alkaloids were isolated from the root of Stephania epigeae H. S. Lo and identified as cycleanine, cepharanthine, 1-curine, and isocorydine, respectively by chemical studies and spectral analysis.

从地不容中分得四种生物硷，根据其理化性质及光谱数据，分别鉴定为轮环藤宁，千金藤素，1-箭毒硷(1-Curine)和异紫堇定硷。

Results Pycnosis and deep staining of neurons, deposits of synapse vesicles and bluring of synapses, fusion and dissociatio of myelin sheaths which were exposed to 10, 50 and 90 mW/cm^2 HPM were observed. The contents of the above four amino acids elevated more markedly on 6 h than those of controls, but on 1 d only the elevation of GABA and glycine after exposure to 10 and 50 mW/cm^2 HPM was observed.

结果平均功率密度10，50和90mW/平方公分S波段高功率微波可引起大脑皮层神经元固缩、深染，尼氏体减少；突触结构模糊，囊泡堆积；髓鞘融合、解离等。10和50mW/平方公分组照后6h大脑皮层上述4种氨基酸含量均显著增高(P.01)；而照后ld仅见γ-氨基丁酸和甘氨酸含量仍较高(P.01)。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。