环带的

Hysteretic-current-loop PWM invertor is its main circuit.

转速闭环采用带限幅的PI调节器，主电路采用电流滞环控制PWM逆变器。

It is indicated that the involved species of this subfamily clustered into two clades: the first clade includes those of the genus Neptis, Phaedyma, Pantoporia and Lintinga; the second one includes those of the genus Parthenos, Moduza, Limenitis, Athyma, Lexias and Euthalia. The genus Limenitis is suggested to be monophyletic; and the genera Euthalia and Lexias proved to be sister to each other and form a monophyletic group. The genus Litinga appears to be more closely related to Neptini than to Limenitini.

基于Cytb基因的线蛱蝶亚科系统发育分析结果表明，所有线蛱蝶亚科聚为两大枝：第一枝包括环蛱蝶属、菲蛱蝶属、蟠蛱蝶属和缕蛱蝶属；第二枝包括丽蛱蝶属、穆蛱蝶属、线蛱蝶属、带蛱蝶属、律蛱蝶属和翠蛱蝶属；其中线蛱蝶属非单系群，翠蛱蝶属和律蛱蝶属则为单系发生，并构成姐妹群；缕蛱蝶属与环蛱蝶族亲缘关系较近。

Research on the main rock-forming minerals of Middle Proterozoic Subera Yingfeng rapakivi granite in the North Qaidam Basin tectonic belt indicates the magmatic body exhibits pyterlitic rapakivi texture,and each main mineral is polygenetic.K-feldspar mainly takes the form of oval phenocryst,and exsolved albite stripe is well-developed.

柴北缘构造带中元古代鹰峰环斑花岗岩主要造岩矿物的研究结果表明，该岩体具pyterlitic型环斑结构，各主要矿物均具多世代特征。

The results showed that molar ratio of cyclohexanone to ethylene glycol was 1∶1.4, the amount of catalyst was 2% cyclohexanone, amount of cyclohexane was 10 mL, the reaction time 2 h, the yield of cyclohexanone ethylene ketal reached 99.6% under the optimum condition.

通过正交实验得出了最佳反应条件：n∶n=1∶1.4、催化剂用量为环己酮质量的2%、带水剂环己烷用量10.0 mL、反应时间2 h，缩酮产率可达99.6%。

One valley lied between two peaks(flower beginning period and fruit maturating period).When meeting blood serum,the electron on the ring B-C and A-C of quercetin molecule would move and make -OHs of Ring B and A ionizated and one anion with double negative charge would present.

遇到血清时，槲皮素分子结构中的B环和C环、A环和C环形成的两套共轭体系中的电子，发生转移并使酚羟基解离，形成带双负电荷的阴离子，此阴离子将与人血白蛋白结构中结合位点上的氨基酸残基以离子键的形式结合。

Rehabilitation of seals is also available in a more unique properties: the injury did not wear face, we have developed a hydraulic reciprocating seal products: grid to circle, Lancaster letters, high-pressure rotating closures, dust-tetrafluoroethane Yixi laps, orientation Support Central, Central-oriented positioning, direction and fluoride with flexible rubber seal; combination of letters: TD, KD, GD, DAS, V-type, and so on.

我们开发的液压往复密封产品有：格来圈、斯特封、高压旋转封、聚四氟乙稀防尘圈、导向支撑环、导向定位环、导向带及氟橡胶密封弹性体；组合封：TD、KD、GD、DAS、V型等。

First, the angular velocity function and maneuver load for certain maneuver flight (including hover, dive-hike and these two combined) are set up. The simulation results of the vibration of double-disk rotor system with cantilever supported on rigid bearings show that rotor would be apparently deformed under maneuver load. Second, the performance of oil force of SFD in maneuver flight is analyzed. The results show that in maneuver flight, the SFD with centering spring will become eccentric and its oil force will be time-related and offset-related.

首先，建立了水平盘旋、俯冲拉起及盘旋+俯冲拉起复合机动三种机动飞行条件下的机动角速度函数，并确定了对应机动飞行条件下的机动附加载荷（附加离心力和附加陀螺力矩），分析了带刚支的双盘悬臂转子系统在机动飞行条件下的振动特性，发现发动机转子在机动飞行时会发生明显变形；随后，分析了非定心挤压油膜阻尼器的油膜力特性，机动飞行时，油膜轴颈在机动附加载荷的作用下偏离外环中心，使得带定心弹支的挤压油膜阻尼器也变成了非定心挤压油膜阻尼器，其非定心挤压油膜力是瞬态时变的，并且与SFD油膜轴颈偏移量和进动形态有关；然后，在经典的Jeffcott转子系统中引入带定心弹支的挤压油膜阻尼器，分析了机动飞行时非线性转子系统的振动特性，发现挤压油膜阻尼器油膜力的非协调特性也反映到转子系统的振动响应中；之后，对机动飞行条件下带挤压油膜阻尼器的双盘悬臂转子系统的振动特性进行了分析，并重点分析、总结了俯冲拉起机动飞行时，系统结构参数和工作状态参数（转速比、机动飞行半径、机动角速度等）对该系统振动特性的影响。

First, the angular velocity function and maneuver load for certain maneuver flight (including hover, dive-hike and these two combined) are set up. The simulation results of the vibration of double-disk rotor system with cantilever supported on rigid bearings show that rotor would be apparently deformed under maneuver load. Second, the performance of oil force of SFD in maneuver flight is analyzed. The results show that in maneuver flight, the SFD with centering spring will become eccentric and its oil force will be time-related and offset-related. Then, SFDs are introduced into typical Jeffcott rotor system. The whole system will be statically displaced in maneuver flight and the nonsynchronous components of oil force appear in the response of rotor system.

首先，建立了水平盘旋、俯冲拉起及盘旋+俯冲拉起复合机动三种机动飞行条件下的机动角速度函数，并确定了对应机动飞行条件下的机动附加载荷(附加离心力和附加陀螺力矩)，分析了带刚支的双盘悬臂转子系统在机动飞行条件下的振动特性，发现发动机转子在机动飞行时会发生明显变形；随后，分析了非定心挤压油膜阻尼器的油膜力特性，机动飞行时，油膜轴颈在机动附加载荷的作用下偏离外环中心，使得带定心弹支的挤压油膜阻尼器也变成了非定心挤压油膜阻尼器，其非定心挤压油膜力是瞬态时变的，并且与SFD油膜轴颈偏移量和进动形态有关；然后，在经典的Jeffcott转子系统中引入带定心弹支的挤压油膜阻尼器，分析了机动飞行时非线性转子系统的振动特性，发现挤压油膜阻尼器油膜力的非协调特性也反映到转子系统的振动响应中；之后，对机动飞行条件下带挤压油膜阻尼器的双盘悬臂转子系统的振动特性进行了分析，并重点分析、总结了俯冲拉起机动飞行时，系统结构参数和工作状态参数(转速比、机动飞行半径、机动角速度等)对该系统振动特性的影响。

Renqiu City is located in central Hebei province, is located in metropolitan Beijing and Tianjin, is a ring around Beijing and Tianjin, the Bohai Sea economic openness belt is the opening city of the State Council.

任丘市位于河北省中部，地处京津冀都市圈，属环京津、环渤海经济开放带，是国务院确定的对外开放市。

Our country is one of a few countries in the world , which have most serious natural calamities, for it is in the cross of the two major areas (Circum-Pacific belt area , Northern -hemisphere middle latitudes area) in the world , which have more natural calamities.

我国处在世界两大自然灾害带(环太平洋带、北半球中纬度带)交汇的地区，是世界上自然灾害最严重的少数国家之一。

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