查询词典 heads-up

Anti-apartheid At men's 200m Victory Ceremony in 1968 Mexico Olympic Games, black gold medalist Tommie Lee Smith and bronze medalist John Carlos raised their clenched right fists and lowered their heads during the playing of American national anthem, expressing their outrage against the apartheid in America.

在1968年墨西哥奥运会男子200米的颁奖仪式上，黑人运动员金牌得主托姆-李-史密斯和铜牌得主约翰-卡洛斯在奏响美国国歌的时候，举起了紧握的右拳、低下了头。以此表示他们对种族隔离政策的愤怒。

You will be amazed at how many heads you turn while wearing your topless sandals.

人们从字面上认为你是赤脚等，将自己的脚。

There's nothing as telling as a smile, said Paul Roll, who heads the tourist board.

没有比笑脸更生动的表现形式了。

Heads and eyes will track the ball and other key elements during the game.

EA公司让玩家真正意识到了游戏里的环境，特别是球上。

Wurman heads north and captures the first twin tornadoes ever recorded on radar. Meanwhile, Bluestein stays in the southern Panhandle and eventually bags his own treasure-trove of twister data.

著名气象学家及有追风者之称的Joshua Wurman 及Howard Bluestein誓要设计出更准确及快速的雷达仪器以观察龙卷风的去向。

We are tribal animals and it is difficult for us to get our heads around this task.

我们是部落的动物，这是我们很难得到我们的元首左右完成这项任务。

Triceratops, as the name suggests, were huge dinosaurs adorned with three horns on their heads.

三角恐龙，顾名思义，是头上有三个角的巨型恐龙。

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。

Here he turned to the rough trundle bed full of little woolly（似羊毛的、蓬乱的、卷曲的） heads, and broke fairly down.

说到这里，汤姆转过头朝那挤满了卷发的小脑袋的粗制四轮木床望去，再也控制不住内心的悲痛了。

They tsk tsk tsk and shake their heads as I sit and spin my brains out and smile.

他们啧啧啧和摇头，因为我坐在我的脑袋和自旋和微笑。

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