末端

The same radium of the two platform, one angle is 120°, another is 0°, with the change of the radium, the error prominency factors has little change.

两平台半径相等，且分支末端两两交于一点时，平台半径的大小对误差放大因子影响不大。

The radium of the two platform become the same and the two angle of the links one of them near 120° another near 0°, the error prominency factors become small.

两平台半径越接近或分支末端两两越趋于一点时，位姿误差放大因子越小。

In the paper, a generalized error model for the robots is set up by using DH coordinates. Moreover, a new analytical technique called"analysis on the error prominency factors for the robot pose error"is proposed. Numerically, the error prominency factor can express the extent of influence on the pose error of the end effector resulted form every DH parameter error within the whole working space of the robot.

在这一研究过程中，除了建立了用DH坐标描述的机器人末端位姿误差和轨迹误差的通用模型之外，还提出了一种新的机器人位姿误差分析技术——机器人位姿误差的显著性分析法。

Error analysis In order to analysis the pose error of the hexapod machine tool, considering the characteristics of the parallel mechanism,"analysis on the error prominency factors for the hexapod machine tool pose error"is proposed. Numerically, the error prominency factor can express the influence on the pose error of the tool resulted from the mechanism parameter error within the whole workspace.

四、位姿误差分析为了定量地对并联机器人机床位姿误差进行分析，结合并联机构的特点，首次提出了&并联机器人机床位姿误差放大因子分析法&，因位姿误差放大因子是反映机床机构参数误差对刀具末端误差影响大小的机床工作空间内的统计值，因此既可作为机床结构参数精度设计的依据又可对机构参数进行优化。

Addition of metallated terminal alkynes to carbonyls is considered as an effective route for the synthesis of chiral propargyl alcohols and has gained considerable significance in recent years.

末端炔对羰基化合物的不对称加成反应是构建手性炔丙醇的重要方法之一，其产生的光学活性炔丙醇是很多天然产物，精细化学品及药物分子的重要合成砌块。

The asymmetric alkynylation of carbonyls is proved to be one of the most powerful procedures for organic synthetic chemistry,where the formation of one carbon-carbon bond and one chiral center of propargylic alcohol can be achieved in one step,and has attracted organic chemists\' most attentions.Plenty of works have been reported in recent years.

由于催化末端炔对羰基化合物的不对称加成在制备手性炔丙醇的同时，能够构建一个碳碳键和一个手性中心，因而该领域的研究受到了研究者的广泛关注，有大量的研究工作见报道。

However, alkyl-substituted propargylic dithioacetals could be synthesized by the displacement reaction of the corresponding terminal alkynes with alkyl iodides.

烷基取代的炔丙基硫缩酮衍生物，则能利用相对应的末端炔和碘烷亲电基进行取代反应所获得。

The characteristic of protargol impregnated specimens was: the single kinety and complex kineties entered the vestibular after they rotated 1.5 coils. the peniculus 3 composed of 3 rows of kineties, of which one near the peniculus 2 was stopped at the joint of peniculus 1 and 3 and the end of the outer row of peniculus 1 had extraversion behavior.

蛋白银制片特征为：单毛基索和复毛基索旋转1.5圈后进入前庭，第3咽膜(P3)起始段由3列毛基索组成，其靠近P2侧的一列毛基索在P1与P3的汇合处终止，P1最外一列的末端外倾。

Presents the regulating method with different terminal units in varied load and performs the psychrometric analysis.

介绍了采用不同末端型式的低温送风系统在冬、夏季负荷变化时的调节方法并进行了焓湿图分析。

In recent years, both HeV and NiV have continued to emerge and reemerge, The epidemic investigation suggested that the virus could be widely present in the Flying foxes, especially Pteropus lylei in Tailand and Cambodia, which are close to China, moreover, the similar enviorment and Flying foxes species、distribution in the south-east area poese a great threat to pig industry and public health of China, based on the above issues, there is a pressing need for diagnostic technologies on the two virus.

为有效防治亨得拉病毒和尼帕病毒在我国的发生和流行，本研究首先利用原核表达系统成功地表达HeV N、NiV N基因以及NiV G一段主要抗原区基因GC，并证实了两种N蛋白的主要抗原区位于C末端约200aa区域。

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