上段

He reaches another grate that allows him to shimmy across a pipe on the ceiling.

他到达了另一段出气口，攀爬上了天花板上的一条管道。

I still carry the scars on my back and shudder at the memory of that time.

在背上、肩膀上都是伤疤，让我时刻回想起这段日子。

It is no good if a train coming in has to stop at the depot entrance while the driver gets instructions from the shunter or depot control office and the rear of the train is still standing on the main line. This can remove two or three paths from a timetable.

不能因为列车在车辆段入口处等待扳道工或信号楼的指示，而使后续列车在正线上等待，这样会打乱时刻表上2到3条运行线。

He raced up fifty flights of stairs at superspeed, frantically ripping off suit, shirt, and tie to expose the skintight blue Superman suit he always wore beneath his clothing.

他超速冲上50段台阶，疯狂脱掉西装、衬衫、摘下领带，露出他一直穿在衣服下面的蓝色紧身超人服，飞上每日星球报社大楼的屋顶。

Of course, it could be some time before someone comes up with the innovation that would help customers who know only that the author sported a hairpiece, or the cover had a picture of a cheese slicer on it, but I leave that to the guys at Amazon to figure out.

当然，如果希望能帮助只知道作者戴著假发或者封面上有乳酪刮片刀图片的顾客找出他们想要的书，可能还得等上一段时间，不过这些要留给亚马逊的工作人员来完成了。

The latter was defined as an elevation of the QRS-ST junction of at least 0.1 mV from baseline in the inferior or lateral lead, manifested as QRS slurring or notching.

早期复极定义为在下壁和侧壁导联上QRS与ST段结合点自基线上抬至少0.1mv，或表现为QRS粗钝或有切迹。

The superior limit of the bulging degree in male is 2.8mm and the mean value is 1.51mm.

对隆起型肺动脉段的突度测量，女性平均值1.51mm，上限值2.6mm，男性平均值1.51mm，上限值2.8mm。

According to alternation of reorganized-KMT "s class nature what the Comintern and Sdalin defined and KMT "s authentic class nature, we"ll find the inner coincidence between the three, KMT "s class nature what the Comintern defined, Sdalin"s "Three Stages Theory" and errors of "Left deviation in the Agrarian Revolutionary War. They have the same fault: on the theory of Chinese bourgeoisie. Comintern looked on Kuomintang as an organzation of united front, which cut apart the close relationship between Kuomintang and the boureoisie, and then inevitably led to a long-standing mistaken concept, this is, confusing the large boureoisie with the national boureoisie and the petty boureoisie. Therefore, as the large boureoisie betrayed the revolution, Comintern regarded the national boureoisie and the petty boureoisie as the underminer of the organzation of the united front, and then struck a heavy blow at then.

考察梳理共产国际、斯大林对改组后国民党性质的判定及其变化和国民党的真实阶级性质可知，共产国际对国民党性质的判定、斯大林"三阶段"论和土地革命战争时期中共党内的历次"左"倾错误三者之间，前后相续，一以贯之，具有内容上的共通性和逻辑上的连续性，它们共同的要害是共产国际、斯大林有关中国资产阶级理论的错误，一是共产国际混淆在半封建半殖民地中国的带买办性的大资产阶级与民族资产阶级，二是把民族资产阶级的妥协与革命的两面性机械地认定为革命与反革命的"两段性"，认为中国资产阶级必然要叛变革命。

For a time, letters were addressed to both her and Tiberius as though she were co-regent, and her name was on the letters that he sent.

有一段时间利维娅的名字和提比略的名字一起出现在公文上，仿佛她是共治者之一，并且提比略发出的信件上总是署有利维娅的名字。

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。

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