化合的

One of the 863 National Scientific and Technological Innovation Projects of China, Backed by the strong technical force of Yantai Wanhua Group, which has developed a unique core process technology of "macromolecule polymerization harening structure", under the unique chemical combination of environment-friendly polyurthane adhesive, and in conjunction with the complete production line for new-type strawboard, which isuniquely developed and continually upgraded by our company, a new generation of environmental substitute for wood panels, the first of its kind in China, is developed --- ecological board.

在吸收了国外先进技术的基础上，依托万华集团强大的科研力量，独创的"高分子聚合固化结构"核心工艺技术，以聚氨酯生态胶粘合剂独特的化合作用，配合我公司独家开发研制并不断完善升级的新型秸杆均质板生产线成套设备，生产出国内首创的无公害新一代木质人造板的最佳替代品--生态板材。

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。

This paper reports the experimental equipment and technology parameter for the synthesis of diisopropylbenzene and triisopropylbenzene by catalytic alkylation between benzene and propene, the conversion of benzene is more than 98%,the selectivity of diisopropylbenzene and triisopropylbenzene is more than 40% and 36% respectively.

报道了苯与丙烯催化烷基化合成二异丙苯和三异丙苯的实验装置与工艺条件，苯的转化率达98%以上，二异丙苯的选择性≥40%，三异丙苯的选择性≥36%，经分离后可获得纯度≥95%的二异丙苯和三异丙苯产品，所提供的合成工艺基本上无污染，在国内外具有先进的技术。

To broaden desert shrub new utilizing fields, accelerate desert shrub developing to the direction of high added-value and high benefit, the paper studied on the liquefaction of Salix, Caragana and Poplar in the presence of Phenol under sulfuric acid catalysis. The optimum processing parameters for Salix, Caragana and Poplar liquefaction and resinification were investigated. The effect of molar ratio of formaldehyde to liquefied products and NaOH to liquefied products on the character and glue strength of liquefied products resin was studied.

摘 要：为了开辟沙生灌木资源新的应用领域，促使沙生灌木资源的利用向高附加值、高效益的方向发展，本文以苯酚作液化剂，以稀硫酸作催化剂对沙柳、柠条和杨木进行液化实验，分析了反应温度、液比、催化剂用量及液化时间对液化反应的影响；并研究了沙柳、柠条和杨木液化产物树脂化合成工艺和配方，分析了不同的甲醛与液化产物摩尔比以及氢氧化钠与液化产物摩尔比对沙柳、柠条和杨木液化产物树脂的各项性能的影响。

This reduction is made by subjecting the ore with coal to a hightemperature, either by the rapid and easy Catalan method, which has theadvantage of transforming the ore into iron in a single operation, or bythe blast furnace, which first smelts the ore, then changes it into iron,by carrying away the three to four per cent.

这个还原过程是用炭把矿石烧到温度很高的时候进行的，可以用迅速而简便的土法（它的优点是只通过一道工序，就能把铁矿石炼成铁），也可以用鼓风炉——第一步使铁矿石熔化，然后排除和矿石化合在一起的百分之三至四的炭，使它变成铁。

He extinguished the candle by a sharp expiration of breath upon its flame, drew two spoonseat deal chairs to the hearthstone, one for Stephen with its back to the area window, the other for himself when necessary, knelt on one knee, composed in the grate a pyre of crosslaid resintipped sticks and various coloured papers and irregular polygons of best Abram coal at twentyone shillings a ton from the yard of Messrs Flower and M'Donald of 14 D'Olier street, kindled it at three projecting points of paper with one ignited lucifer match, thereby releasing the potential energy contained in the fuel by allowing its carbon and hydrogen elements to enter into free union with the oxygen of the air.

38他猛地朝火苗吹去，把蜡烛熄灭。将两把匙形木椅拖到炉边，一把是给斯蒂芬准备的，椅背朝着面临院子的窗户，一把是自己坐的。他单膝着地，往炉格子里放了些粘着树脂的枝条和五颜六色的纸张，以及从坐落于多利埃街十四号的弗罗尔与麦唐纳公司的堆置场以每吨二十一先令的代价买来的优质阿布拉莫木炭。他把这些都十字交叉地堆成不规则的多角形，划了一根安全火柴，在纸张的三个角落点上火。这样，燃料里的碳和氢这两种元素就与空气中的氧气自由化合，散发出潜在的能量。

The Division of Neurology is primarily dedicated to teaching and research in neurology including molecular aspects of xenobiotic enzymes, epilepsy, percutaneous carotid and vertebral artery angioplasty, In vitro and in vivo experimental studies on neuroprotective effects of neuropeptides during focal cerebral ischaemia, cardiovascular and autonomic complications during the acute stage of stroke.

神经学分部主要致力于神经学的教学与研究，其研究领域包括异生化合酶类的分子相，癫痫，颈动脉和脊椎动脉血管成形术，脑局部缺血中神经肽的体内和体外神经保护，急性中风时的心脏血管和自发的并发症等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。