查询词典 spiral

E to move stand with tripod equipment should check the connection is solid, removal should be related to brake slightly spiral housing, the instrument in the process of moving will not stop shaking.

搬站之前，应检查仪器与脚架的连接是否牢固，搬运时，应把制动螺旋略微关住，使仪器在搬站过程中不致晃动。

Thick liquid material and bleaching the liquid to enter and bleach the tower after the high enriched mixing device is fully mixed, through bleach thick liquid material person who is distribute , tower of top drop from top of the tower , thick liquid material take to undergo 2 hours from top of the tower to the bottom of the tower, discharged by the spiral tripper of the bottom, enter and store the thick liquid pool.

浆料与漂液经高浓混合器充分混合后进入漂白塔，经过漂白塔顶部的浆料分布器从塔顶落下，浆料从塔顶到塔底需经过二小时，由底部的螺旋卸料装置排出，进入贮浆池。

As the complete characteristic curves of reversible pump turbine are often used to calculate the instantaneous parameters, this paper studies the characteristic curve and the wicket closure and opening law in pumped storage plants.Chapter 1 presents the importance and the necessity of this study and reviews the previous related research on hydraulic transient process and valve regulation in pumped storage plants.Chapter 2 analyzes the six collected characteristic curves of reversible pumped turbine and studies their diversification from the point of view of specific speed. The six collected discharge and moment curves with maximum efficiency have been fitted to piecewise continuous curves. This curve-fitting procedure is listed.Chapter 3 takes Liyang Pumped storage plant as an example and analyzes the effect of different characteristic curves on regulation guarantee parameters and the variety of its trochoid during the same operation status.Chapter 4 takes three pumped storage plants with different heads as examples and studies the characteristic of coordinated closure with wicket gate and ball valve and its effect on dynamic pressure in the spiral case, inlet pressure in the draft tube and the rise of rotating speed.Chapter 5 summarizes this paper and point out what should be done in the future research.

由于在过渡过程分析计算中，需要频繁利用可逆式机组的全特性曲线推求机组的瞬时参数，所以本文就特性曲线及关闭规律问题进行了研究，其主要内容如下：第1章，指出本文研究的意义和目的，回顾前人对水力过渡过程、抽水蓄能电站及阀调节的研究成果，在此基础上提出本文的研究内容；第2章，针对收集到的六套特性曲线，从比转速的角度出发来研究可逆式机组特性曲线的变化规律；并对六套曲线的最高效率流量和力矩曲线进行分段拟合，得到各分段函数的具体形式，再通过举例说明最高效率曲线的拟合步骤；第3章，以溧阳抽水蓄能电站为实例，分析讨论不同比转速特性曲线对调保参数造成的影响及对于相同工况其轨迹线的变化；第4章，结合高、中、低三水头段抽水蓄能电站，在导叶直线关闭的基础上，研究导叶与球阀协联关闭规律的特点及对蜗壳动水压力、尾水管进口压力及转速上升造成的影响；第5章，总结全文，提出今后研究的重点和方向。

Objective:To study the spiral CT signs of tuberculous bronchial stenosis,so as to improve its clinical understanding.

目的 ：分析支气管结核性狭窄的螺旋CT表现，以提高其临床认识。

Objective To evaluate the role of multi-slice spiral CT imaging in the diagnosis of tumorous bowel diseases.

目的 探讨多层螺旋CT在肠道肿瘤诊断中的价值。

The most common form of DNA in a cell is in a double helix structure, in which two individual DNA strands twist around each other in a right-handed spiral.

最常见的形式在细胞的DNA是在双螺旋结构，其中两个单独的DNA链捻周围对方用右手螺旋。

Objective To analyse the appearance of cholesteatomtous tympanitis on Spiral CT and clinical application.

目的：分析胆脂瘤型中耳炎的螺旋CT表现，探讨螺旋CT在临床的应用价值。

Spiral CT is extremely accurate in diagnosis of cholesteatomtous tympanitis,and has significant value for directing clinic treatment.

螺旋CT对胆脂瘤型中耳炎的准确诊断具有很高的价值，对指导临床治疗有重要意义。

Results Spiral CT findings of cholesteatomtous tympanitis included: soft tissue mass in the tympanium, tympanal sinus and mastoid,destruction of the bone including ossicles chain,secutum,facial nerve canal,semricirular canal,sigmoid sinus plate, tegmenttympanic.

结果：胆脂瘤型中耳炎的螺旋CT表现为鼓室、鼓窦及乳突区软组织肿块，常伴有骨质破坏，其中包括听小骨、盾板、面神经管、半规管、乙状窦及鼓室盖骨质破坏。

By pulling the pro- tective cover toward the direction of subscriber premis- es, the spiral section of the cable can be drawn out from the cover's tapered end without being uncoiled.

通过将保护盖朝用户房屋方向拉，光缆的螺旋段就可以从盖子的锥形末端拉出来而不会解开螺旋。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷