查询词典 primary axis

The eyepiece has an optical axis , and this axisshouldbe aimed at the center of the main mirror for best performance - though in practice it is the center axis of the focuser drawtube that you aim at the primary mirror .

目镜和主镜一样也有光轴，光轴应该对准主镜的中心--尽管实际上，目镜的光轴对准的是调焦筒的中心。

Based on the analysis of application of numerical control worktable, the design requirements for a virtual axis NC worktable are presented. A new three-translation and one-rotation 4-DOF parallel robot mechanism is constructed according to the design requirements and it acts as the primary mechanism of the virtual axis worktable.

在数控工作台应用分析的基础上，提出虚拟轴数控工作台的设计要求，构造一种新型3平移1转动的4自由度并联机器人机构，并将其作为虚拟轴工作台本体机构。

In order to get the largest possible field of view, low magnification eyepiece multi-use wide-angle eyepiece, depending on the field in general is greater than 3 °, FPA Office for aiming with the reticle with its optical axis to remain parallel with the primary mirror optical axis.

通常为口径小于10厘米的折射望远镜。为了得到尽量大的视场，目镜多选用低倍率的广角目镜，视场一般大于3°，焦平面处装有供瞄准用的分划板，它的光轴要与主镜光轴保持平行。

And the long axis of simple pit Varied along with CMfs orientation of each secondary wall.This paper proposed a structure model of Phyllostachys pubescens cell wall,based on the results of CMfs deposition and thickness of each secondary wall.Secondly, it was a multilamellate structure of parenchyma cell wall,but its thin and thick lamellate was not evident.CMfs orientation on primary wall of parenchyma cell was perpendicular to cell axis.

纤维的细胞壁为典型的薄厚层相间的同心圆多层结构，初生壁CMfs排列方向与细胞轴向垂直90°次生壁中厚层的CMfs均以接近平行的小角度(0～5°沉积；薄层一般以大角度沉积，且薄层的CMfs角度由壁外侧向细胞腔里逐渐增加，直到完全垂直。

Fruit dry, of two mericarps united by their faces, and usually attached to a central axis, from which the mericarps separate at maturity; mericarps are variously flattened dorsally, laterally or terete; each mericarp has 5 primary ribs, one down the back, two on the edges near the commissure, and two between the dorsal and lateral ribs, occasionally with four secondary ribs alternating with the primary, the ribs filiform to broadly winged, thin or corky; vittae usually present in the furrow (intervals between the ribs sometimes called the valleculae) and on the commissure face, rarely also in the pericarp, sometimes obscure.

果干燥，二分果瓣，通常附着在果瓣柄上，成熟时分离，分果瓣背面不同程度扁平，横向或者圆柱状；每分果瓣有5条主棱，一条背棱，2条侧棱，3条中棱，有时有4条与主棱互生的次级棱，棱丝形到形成宽翅，薄或木栓质沟槽和分果的合生面通常有油管（在棱和棱之间有沟槽，很少果皮上有油管，有时不明显。

In the region upstream of vortex breakdown, the sectional streamlines emanating from the leading edge spiral inward to primary vortex and in the region downstream of the breakdown, on the other hand, the streamlines separating from the leading edge are not entrained into the vortex core in the instantaneous sense. Along the axis, the topology of the primary vortex alters several times starting from stable focus near the apex to unstable focus, and lasts back to stable focus near wake edge, the stable hmit cycle and unstable limit cycle are shown in this evolution.

发现在截面流线谱中，即使奇点的类型、数目及位置相同，奇点的连接方式也有可能不同；旋涡破裂点前，主涡由来自前缘的力线卷绕而成，主涡焦点与前缘半鞍点相连，旋涡破裂后，来自前缘的力线不再卷入主涡，主涡焦点与对称面上的鞍点相连：在流体由翼尖流向后缘的过程中，截面流线谱的拓扑结构发生了多次变化，主涡焦点相继由稳定状态转变为不稳定状态，最后又转化为稳定状态，并先后出现了稳定的极限环及不稳定极限环。

About 48%(90/194) were below 29 years of age. Ninety-nine of 194 cases had either radiotherapy alone or supplementary treatment with radiotherapy following surgery. We analyzed multiple prognostic factors. The factors of importance included postoperative radiotherapy; female in glioblastoma multiforme; the primary tumor dose above 5000 rads and/or whole brain irradiation in malignant astrocytoma and glioblastoma multiforme; the primary tumor dose above 4500 rads in ependymoma, medulloblastoma and oligodendroglioma; and spinal axis irradiation above 2000 rads in ependymoma and medulloblastoma that produced a better prognosis than in other groups.

男与女之比例为2.7比1，年龄分布自1至81岁，平均年龄33.3±19.3岁，中值年龄为34岁，29岁以下占48%(90/194)，其中99例单独或手术后辅以放射腺治疗，分析同种脑瘤的预后因素，其中多形神经胶母细胞瘤有手术后放射线治疗或女性，多形神经胶母细胞瘤合并星细胞瘤原发肿瘤剂量5000雷得以上或曾全颅腔照射，神经管胚细胞瘤，间胶质母细胞瘤，及室管膜瘤原发肿瘤剂量4500雷得以上，室管膜瘤及神经管胚细胞瘤有脊轴照射2000雷得以上预后均佳，且统计上有显著的差异。

on the research of primary cable routing, an automated primary routing algorithm based on Dijkstra algorithm is put forward, which can generate automatically the primary radiate distribution planning graph of the area to be planned.b In the research of secondary cable routing, a heuristic search algorithm—production system reasoning of artificial intelligence is put forward in this paper to solve the problem of load allocation in outlet cables of main supply sources.

在初级布线的研究中，本文提出基于最短路Dijkstra算法的自动初级布线算法，该算法能对一个待规划的城区分片自动形成初步的城区辐射配电网规划图。

These measures are as follows: shorten the primary wind intervals to improve thermal load of the burner; reduce the size of hypothetical circle of contact to prevent the flame from splashing; use nozzles with larger height/width ratio to increase the effusive rigidity, so as to increase the jet flow depth of secondary wind into the main jet flow; use a higher primary wind velocity to increase its jet flow rigidity; use a special flame holder structure of the primary nozzle, so as to improve

实践证明，采用这些方式最终有效解决了炉膛结渣问题，并切同时兼顾了锅炉热效率与炉内燃烧的稳定性。

Compared with primary storage,the storage capacity of a DASD is larger and the cost per bit stored is lower.although the access time of a DASD may be only a few milliseconds,primary storage,primary storage speed is thousands of timer faster.different DASDs provide different levels of cost and performance.

与主存储器相比，DASD的存储容量更大，每存储位的花费更低。尽管DASD的存取时间只为几毫秒，而且主存储器的速度比之快几千倍。不同的DASD其成本和性能的等级也不同。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。