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We analyze the principle of stick-slip motion deeply. From foregoing analysis a result was made that dry friction is the main factor in influencing low speed capability of electro-hydraulic servo system. Dry friction must be compensated for improving the low speed performance. Then a nonlinear model with friction is set up and control methods is discussed.

深入分析了汽轮发电机转速不稳定的原因是由于电液伺服系统在低速区性能不稳定，而影响电液伺服系统低速性能的主要因素是干摩擦，要提高电液伺服系统的低速性能必须对摩擦力进行补偿。

Results: In the 13 cases, the CT diagnosis show that five cases of low-density lesions of Bilateral hepatolenticular, five cases of globus pallidus, one case of Bilateral hepatolenticular with corpus callosum, one cases of External capsule putamen, one case of Putamen with the caudate nucleus, three cases of low-density of Bilateral lobi frontalis and lobi parietalis, one case of unilateral putamen hemorrhage, three cases of cerebral atrophy.

结果 13例中，CT示双侧豆状核低密度5例、苍白球5例、双侧豆状核伴胼胝体1例、壳核伴外囊1例、壳核伴尾状核1例；双额顶叶低密度3例、单侧壳核出血1例、大脑萎缩3例。

An optimal filter is designed specially for dq transform used in the voltage mea-surement of transfer switch,which is composed of lower-order notch filter and lower-order low pass filter with higher cut-off frequency in series.Its transfer function is presented by theoretical derivation.If the order is same,it is better in measuring the positive sequence of fundamental amplitude than the average filter and the low-pass filter.

针对转换开关电压检测法——dq变换设计了优化滤波器，该滤波器是利用低阶陷波滤波器和较高截止频率低阶低通滤波器串联形成的，通过理论推导给出了该滤波器的传递函数，在相同的滤波阶数下，该优化数字滤波器在提取基波正序幅值的性能比较中，优于平均值滤波法及低通数字滤波器法等。

If gangdom commits a crime, if the level into the blame is too low, encroach tong easily from You; The level that political Xing crime enters a blame is too low, violate political right easily.

如黑社会犯罪，如果入罪的标准过低，就容易侵犯结社自由；政治性犯罪入罪的标准过低，容易侵犯政治权利。

The latest type explosive motor utilizes cheap low qu***ty fuel Low temperature complete combustion, By means of warmhearted water Gasify to absorption of heat to lower the temperature supercharge , Promoteing the gas motor dos .

在释放阶段，外燃（200年前的蒸汽机）——内燃（100年前的内燃机）——爆燃是完全不同的，根本不在一个层次）。但也只有比较才易于理解：理论空燃比、充分的混合这些条件是任何现有热机都可望而不可即的。

Low a-amylase activity, especially in conjunction with low starch gelatinization, leads to a firm and brittle crumb structure .

面粉中a-淀粉酶活性，尤其再结合以较差的淀粉糊化性，就会导致最终制品呈现一种坚硬，脆裂的屑状结构。

The phytoplankton biomass altered from 4.22 mg/L to 22.31 mg/L, averaging 12.29 mg/L. The diversity index of the phytoplankton (H =0.96) was relatively low. The zooplankton identified belongs to 19 species, and its biomass ranged from 3.75mg/L to 7.74mg/L, averaging 5.93mg/L. The diversity index of the zooplankton was relatively low too. In the cultured rice fields, the phytoplankton identified belonging 53 gena, 6 phyla.

在网箱养鳝塘中，共检出浮游植物40属，隶属于7个门；浮游植物生物量变化在4.22mg/L-22.3mg/L之间，平均为12.29mg/L；浮游植物的多样性指数相对较低(H=0.96)；共检出浮游动物19属，其生物量变化在3.75mg/L-7.74mg/L之间，平均为5.93mg/L；浮游动物的多样性指数(0.80)也相对较低。

But because of a lot of factors restraint such as history , geographical feature and culture, western region's development of human resources level comparison is low , the rate of population increase is quick, people's overall culture quality is low, the human resources acute structural imbalance, the talented person utilization ratio is not high , the speed that science and technology changes into productivity is slow

但是由于历史、地理和文化等诸多因素的制约，西部地区的人力资源开发水平比较低下，人口增长速度快，人们的整体文化素质低，人力资源的结构性矛盾突出，人才的利用效率不高，科技转化为生产力的速度缓慢，这些已影响着西部大开发战略的顺利实施。

Offices throughout the south side of West Qinling Mountain Longnan, the geological structure as the Kunlun Mountains Zou geosyncline fold zone, the high-lying low in the east, west, central high, north-south low.

全境处西秦岭南侧陇南山中，地质构造为昆仑秦岭地槽褶邹地带，地势西高东低，中部高，南北低。

Results (1) Compared with that of 4-Retro-decoction group and heart failure control group, the activity of Na〓-K〓-ATPase in low- and middle- dosage ginger group showed to be decreased with statistically significant difference. P＜0.05.(2) The activity of Ca〓-ATPase and Mg〓-ATPase in the lower- and middle-dosage ginger group were not statistically different from that of 4-Retro-decoction group and control group, but the activity of Ca〓-ATPase showed an ascending tendency in low-dosage ginger group.

结果 (1)低、中剂量干姜组的Na〓-K〓ATP酶活性明显偏低，与四逆汤组和心衰组比较，差别均具有显著性，P＜0.05；(2)低、中剂量干姜组的Ca〓-ATP酶和Mg〓-ATP酶活性与四逆汤组和心衰对照组比较，无统计学意义，但低剂量干姜组的Ca〓-ATP酶与其它三组相比有升高趋势。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。