未表明地

Diels (contains ligustilide ＞ 70%), could markedly inhibit the contractile function of isolated uterine smooth muscle of mice in a concentration-dependent manner (the utlimate bath concentration is 1 mg/100 mL～32 mg/100 mL) whether the test sample was isolated from normal or oxytocin treated mice. It proved that angelica oil had significant anticonvulsive effect in uterine smooth muscle of mice.

当归油 (含藁本内酯 ligustilide＞70%)，用1%吐温-80助溶，无论对正常未孕离体子宫还是对经缩宫素处理的离体子宫，都可剂量依赖性(浴槽终浓度为 1 mg/100 mL～32 mg/100 mL)地抑制子宫平滑肌的收缩功能，其性质与妇痛宁滴丸相似，但作用稍强，表明其有抗子宫平滑肌痉挛作用。

The main research contents and results are given as follows:(1) Principles and characteristics of different types of polarization controllers are analyzed, the compare of the difference of these polarization controllers are discussed based on them, drawn a conclusion that the polarization controller which based on squeezing fiber and has variable delay quantity are suitable for high speed optical communication system.(2) The reset principle of the typical four channel polarization controller which is based on squeezing fiber is analyzed, and the design of its concrete reset scheme is given based on them. The reset process and the corresponding operation list are given in detail.(3) The systematical experiment is made when the typical four channel polarization controller is put into the PMD compensator. The experiment result showed that the channel which needs reset can efficiently return to the mean place, and the effect of reset was good, it didn't cause any badness infection on PMD compensation.(4) A new type optical signal time-domain depolarizer is given, and a new PMD compensate method is given based on it.

由此得出延迟量可变型光纤挤压型偏振控制器适用于高速光通信系统的结论；(2)具体分析了典型的四通道光纤挤压型偏振控制器的复位原理，并在此基础上对其进行了具体复位方案的设计，给出了各种情况下的详细复位流程和相应的复位操作列表；(3)将四通道光纤挤压型偏振控制器应用于偏振模色散补偿器中进行系统实验，实验结果表明，需要复位的通道能有效地回到中间值，复位效果良好，且复位未对PMD补偿产生不良影响；(4)设计了一种新型的光信号时域退偏器，并基于该退偏器提出了一种新型的偏振模色散补偿方法。

The results indicated that the soil physical fertility characteristic of super high-production cornfield was high, mainly display in the topsoil was deep, soil bulk density changed between 1.01-1.26 g/cm3, disarrangement rate of soil structure was...

研究结果表明，超高产玉米田土壤物理肥力特性较高，主要表现在耕层较深厚，土壤容重变化在1.01～1.26g/cm3，土壤的结构破坏率较低；在土壤的化学环境特征方面，土壤碱解氮、速效磷、速效钾等均未表现出明显的变化规律；所有超高产田的土壤阳离子交换量均不同程度地高于普通生产田，这与超高产田的定向培育有直接关系；一些超高产田有机质低于普通生产田，其原因与超高产田氮素施用量较高、促进了土壤有机质矿化有关。

The pot experiment results showed that inoculation with A1501 and A1513 could promote the growth and grain yield of rice. Comparison with the non\|inoculation, the grain yeild of rice treated with A1501 and A1513 increased by 8 5% and 10 3% respectively. And %Ndfa of rice shoot and grain estimated by 15 N\|isotope dilution method was 9 00% and 11 5%, respectively, which was consistent with the increment of the total N(8 5% and 11 6%,respectively).

盆栽结果表明，接种A.faecalis 显著提高了水稻的生长，接种A1501 和A1513 的水稻稻谷产量分别比未接种提高了85％和103％，用15N 同位素稀释法估测水稻地上部总氮中来源联合固氮的百分率达900％和115％，其结果与水稻地上部总氮量的增加幅度（86％和116％）基本一致。

Our results indicate that the plant can only abscise fruits oviposited by parasitic wasps before pollinating wasps in fig-fig wasp mutualism, but do not abscise the fruits parasitized by wasps ovipositing simultaneous or later than pollinating wasps, implying that abscission can not sufficiently maintain the fig-fig wasp mutualism.

结果表明：脱落机制并不能完全阻止非传粉小蜂的寄生，榕树只能选择性地脱落掉先于传粉小蜂产卵的榕果。这也同时表明维持榕树与榕小蜂互利共存的机制不仅仅只有榕果的脱落机制，可能还存在其它未被发现的机制。

The results show that in the presence of NaHCO3 as base and DMF-H2O (volume ratio 2∶1) as solvent, the complex could catalyze not only iodobenzene but also non-activated bromobenzene quantitatively at 90 ℃ without the inert gas protection, and furthermore the catalyst could be recovered and reused more than eight times.

结果表明，在没有惰性气体保护的情况下，以NaHCO3作碱，以DMF水溶液(体积比为2∶1)作溶剂，在90 ℃时，该配合物不仅对活性较高的碘代苯能够定量地催化，对未活化的溴代苯也能定量地催化，并且催化剂能够回收再利用8次以上。

The high compressive strength is obtained when the modulus of the activator viz., molar ratio of SiO2/Na2O is 1.5, and the proper content of this activator evaluated by the amount of Na2O to the high-calcium fly is 10 %. The compressive strength of these samples is 63.4 MPa when they is cured at 75 oC for 8 hours flowed by curing at 23 oC for 28 days. The main gels of geopolymer and calcium silicate hydrate, and Gismondine co-exist and bond some remaining unreacted fly ash spheres.

结果表明：复合碱激发剂适宜的模数M =n(SiO2)/n(Na2O)为1.5，掺量为Na2O当量10％；适宜养护条件为，75oC养护8h，然后在23oC室温养护至所需龄期，其28d抗压强度达63.4MPa；碱激发高钙粉煤灰同时生成地聚合物凝胶和水化硅酸钙凝胶，并有类沸石矿物生成，反应产物与未反应的粉煤灰颗粒胶结成较为密实的高钙粉煤灰地聚合物。

According to calculation of obstacle degree, the obstacle factor of sustainable land use was analyzed in detail. The factors such as per capita agricultural gross output value, per unit area yield of grain, reed land rate, agricultural land rate and degree of townish are the main obstacle factor ofKey words: land use; sustainability; obstacle degree; The Yellow River Delta

研究结果表明：在34个因子中人均农业总产值、粮食单产、芦苇地占地率、农业用地率、城镇化水平是黄河三角洲可持续土地利用的主要障碍因素，其中芦苇地占地率在1996年以后始终是第一障碍因素，而人均农业总产值的限制主要出现在1998年之前，之后对可持续土地利用未构成障碍；粮食单产和农业用地率的影响主要出现在1996年以后；林草覆盖率、公顷耕地农机总动力和农村电气化水平在一半以上的年份对可持续土地利用构成障碍；在1994年之前，农民人均收入障碍度较大，是主要的障碍因素。

Smith has indeed shot Jones; but fuller inquiry shows that he did it unintentionally: perhaps he shot at a bird not foreseeing that Jones would suddenly and without warning step into the line of fire, or that the bullet would ricochet off a tree: or perhaps he thought on good grounds that the gun he was playfully pointing at Jones was unloaded.

史密斯的确枪杀了琼斯。但更为全面的调查表明，他是非故意这样做的：也许他是在打鸟，而未料到琼斯会突然毫无预兆地闯入射线，或者没有想到子弹会从树上跳飞；也许他有充分根据认为，他开玩笑地对准琼斯的枪没装子弹。

Soybean planted in the yellow brown soil, althongh they had big difference in nodule numbers caused by different inoculation methods, there were no difference in the fresh shoot weight because of the poor nutritional conditions. Soybean planted in the brown soil, the difference between different inoculations and fresh shoot weight were obviously because of the balance nutritional conditions. Although there were big difference in nodule numbers when soybean were planted in the peat, there were no difference in the fresh shoot weight, this might be caused by peat, the peat were not a natural soil type and the nutritional conditions might be unbalance.

分期采样的结果表明，黄棕壤中栽种的大豆，虽然接种根瘤菌对结瘤作用有较大的影响，但由于黄棕壤的肥力状况欠佳，而对豆科植物地上部分生长的影响未显出作用；棕壤土中栽种的豆科植物，接种根瘤菌在结瘤方面和植物地上部分生长方面，由于土壤肥力状况较为平衡，均表现出明显的效果；草炭土中生长的豆科植物在结瘤方面虽然表现出较大差异，但由于这种土壤的肥力状况不适于豆科植物的生长，而使地上部的生长也未形成统计上的差异。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。