时基

Through upregulating the production of MMPs in deciduas and chorionic villi, the upregulation of the expression of EMMPRIN in syncytiotrophoblast and cytotrophoblast column of the villi in the threatened abortion can degenerate deciduas and denudates embryo.

发生先兆流产时合体滋养细胞、细胞滋养层柱所表达的EMMPRIN增强可能通过上调绒毛及蜕膜组织中基质金属蛋白酶的水平，降解细胞外基质，使绒毛剥离、蜕膜组织剥脱。

The synthesis of sucrose ester containing ethanoyl and oleoyl was performed by transesterification between sucrose octaacetate and ethyi oleate in organic solvents, using lipases Novo435 as the catalyst.

在有机溶剂中，以脂肪酶Novo435为催化剂，蔗糖八乙酸酯与油酸乙酯通过转酯化反应合成了同时含有油酸酰基和乙酸酰基的混合型蔗糖酯，当蔗糖八乙酸酯与油酸乙酯的物质的量之比为1：1时，油酸乙酯的转化率达95％。

The hepatopulmonary syndrome occurs when intrapulmonary dilatation causes hypoxemia in cirrhosis. The free radicals may play a significant contributory role in the progression of HPS, and flavonoid agents could protect against deleterious effects of free radicals.

这个太专业了，不当之处请见谅：肺内扩张导致肝硬化部位血氧供应不足时就会发生肝肺综合症，自由基在肝肺综合症进程中可能扮演了一个极其显著的角色，类黄酮剂能够防止自由基的毒害作用。。

Results Among the three groups,the children's rib cartilage had the most blood vessels,the most chondrocytes,well-distributed stain of matrixes,and the type Ⅱ collagen was expressed actively and highest in photedensity.The rib cartilage of teenager group had less blood vessels,unhomogeny distributed stain of matrixes,the enlarged and separated cartilage lacunas.The rib cartilage in adult group showed the least blood vessels,the least chondrocytes.the hyalinization of perichondium,the most deposition of calcium salt,and the type II collagen was expressed at the lowest level in photodensity.

结果 儿童组肋软骨膜血管最丰富，软骨基质染色均匀，软骨细胞数目最多，Ⅱ型胶原蛋白表达最活跃，平均积分光密度值最高；青少年组软骨膜内血管减少，软骨基质染色出现明显的不均质状，软骨陷窝体积变大，并呈分隔状，陷窝内软骨细胞数目减少，II型胶原蛋白表达较儿童组减弱；成人组软骨膜血管、细胞成分明显减少，软骨膜内的纤维成分明显玻璃样变，钙盐沉积较青少年组时明显增多，Ⅱ型胶原蛋白表达较青少年组减弱。

It is found thatthe fractal dimension D=1.25 corresponds to the lowest criticalcoupling constant αc=1.9,D=1.73 corresponds to the highest criticalratio of dielectric constants ηc=0.163,and when D≤1.145 bipolaronscan not exist at any rate.In chap,4,we will propose a novelapproach to the calculation of the exciton ground-state energy for thestrong-coupling case.Different from all previous methods,the wavefunction of the phonon part is assumed to take a form related to thewave function of the relative motion.We obtain the exciton energy bysolving the derived integrodifferential equation rather than select ahydrogen-like form to minimize the energy expectation.

结果发现，分数维的维数D＝1.25对应最小的临界的电-声耦合常数(αo＝1.9)，D＝1.73对应最大的临界的介电常数比(ηc＝0.163)，当分数维的维数D≤1.145时，双极化子无论如何也不可能存在，在第四章中，我们将提出一种新颖的变分方法来计算强耦合的激子-声子系统的基态能，不同于以前所有的方法，我们取声子的波函数与相对运动波函数有关的形式，而不是假定一个固定的关于相对运动坐标r的函数形式，得到相对运动波函数所满足的非线性的微分积分方程，我们数值求解这个微分积分方程得到系统基态能，而不是选择一个类氢原子的波函数变分使得能量的期待值最小。

If an additive of B less than 1.37 at.-%, some of B atoms solid-dissolved interstitially into matrix and distorted the lattice, thus the lifetime of positron in matrix dilated; the others of them segregated on vacancy-like defects and formed" filling effect", thus the mean lifetime and S parameters decreased. If B added up to 2.22 at.

在Ni_3Al合金中加入少量硼(≤1.37％)时，一部分硼原子以间隙方式溶解到基体中，使晶格发生畸变，导致基体中正电子寿命增长；另一部分硼偏聚到空位型缺陷上，产生&填充效应&，导致平均寿命■和S参数下降。

The results show that jamesonite and pyrrhotite have good floatability in the pH range of 2-10 and marmatite has good floatability in the acid and it is difficult to separate these minerals. In the pH range of 6-8, the separation of jamesonite and pyrrhotite, marmatite is possible when using mercaptoacetic acid and mercaptoethanol as depressants. In case of the presence of Cu2+ ion, however, it is difficult to separate the three minerals. Infrared spectrum demonstrates that there are a number of function groups such as —SH,—COOH,—OH in the molecular structure of depressant.

结果表明：用丁黄药作捕收剂，脆硫锑铅矿和磁黄铁矿在pH 2~10范围内都有良好的可浮性，铁闪锌矿在酸性条件下可浮性好，三者分离困难；在pH 6~8之间，采用巯基乙酸和巯基乙醇作抑制剂，脆硫锑铅矿与磁黄铁矿和铁闪锌矿的分离是可能的；但铜离子存在时， 3种矿物之间的选择性分离是难以实现的。

I'd imagine Kenyon Martin, Kittles, Van Horn and a slew of other NBA players would say the same for Jason Kidd.

我可以想像肯扬-马丁、基特尔斯、范霍恩和其他许多 NBA 球员都会在谈到贾森-基德时表现出同样的赞赏。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时，将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流，同时加入催化剂，然后通过分液，保留有机层，再对有机层进行减压蒸等步骤制得所述化合物；本发明合成工艺简单，转化率大于95％，反应在常压条件下，反应温度低，从而降低了能耗，减少了污染，所制备的化合物具有反应活性高和毒性小的特点，使用安全。

Conductive electrodes can be deposited on metallic substrates by electrospark deposition process and a coating with excellent properties and metallurgically bonded with substrates can be produced to heighten the hardness and wear resistance of workpieces surfaces.

电火花沉积技术可以将电极材料沉积到金属基体表面，形成与基体冶金结合且具有优异性能的沉积层。用YG8电极棒为电极材料，进行了紫铜表面电火花沉积WC工艺试验研究，发现沉积效果在电压为60V、频率为200Hz、比沉积时间为2.8s/mm2时最好

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失