查询词典 up and down

Fluidization and Sounding Pressure Characters Experimental Research on Pulsating Fluidized Bed After verifying experimentally the Rijke type self-exciting pulsating fluidized bed combustion, under different operating conditions (different empty cross-section wind speed and inaction bed height), experimental research the oscillation characters of sounding pressure in the pulsating fluidized bed. The results indicate that the sound characters in the Rijke type self-exciting pulsating fluidized bed combustor are the same with it in the Rijke type combustor, the pressure in the combustor oscillate up and down in the sinusoidal manner and the pressure is the superposition of the multiple harmonic waves.

脉动流化床流化与声学压力特性实验研究在实验验证了Rijke型自激脉动流化燃烧概念后，在不同运行条件(空截面风速、静止床层高度)下，实验研究了Rijke型自激式脉动流化床的声压振动特性，研究结果表明：脉动流化床内建立起的声波特性和Rijke型脉动燃烧器内的一样，各点压力呈正弦规律上下振动，且压力是基波幅值最大的多次谐波的叠加。

Wave is the rotor blades hinges on the hinge between the propeller blade hub, the hinge allows the blade perpendicular to the rotor plane up and down waving, in order to make it not have chatter and the shutdown will not touch the ground, usually limited to damping and compatible digital devices ...

挥舞铰是旋翼桨叶于桨桨毂之间的铰接，这个铰接允许桨叶垂直于旋翼平面上下挥舞，为了使之不会产生颤振及在停机时不会触及地面，通常都有阻尼及限位装置相配合。。。。

Having absorbed all advantages from exotic machines and designed according to the standard of ASME, this harrow has adopted combined structure whose rigid frame is welded with square tube, equipped with hydraulic up-and-down road wheels, spring leveling device and sealed bearing with spheroid outer surface and square inner hole special for disc harrow.

此耙吸收了国外同类先进产品的优点，按部颁标准设计，整机采用组合式结构，以方型焊接管整体式钢性耙架为主体，配有液压起落运输轮，弹簧调平机构和圆盘耙专用的外球面内方孔密封滚动轴承，结构合理、坚固耐用，运输方便，回转半径小，易于调整，便于维护保养，是目前国内先进的圆盘耙产品。

And then to make it even more surreal, contestants got into this contraption from what we can gather the Santas strap themselves to Bungee court and jump up and down on trampolines.

更加梦幻的是，参赛者必须进入这个奇妙的装置，这样，偶们将&圣诞老人&们聚集到跳床上，他们会蹦蹦跳跳的接人们扔过来的饰品，其中包括饮料。

And then to make it even more surreal, contestants got into this contraption from what we can gather the Santas strap themselves to Bungee court and jump up and down on trampolines.

更加梦幻的是，参赛者必须进入这个奇妙的装置，这样，我们将&圣诞老人&们聚集到跳床上，他们会蹦蹦跳跳的接人们扔过来的饰品，其中包括饮料。

And then to make it even more surreal, contestants got into this contraption from what we can gather the Santas strapped themselves to Bungee Cords and jumped up and down on trampolines.

让比赛更加超现实一些。参赛者进入比赛场地，将他们用缆绳捆住腰，让他们在蹦床上上下跳跃。

A grit one's teeth, did not hesitate to set off, with my whole body up and down to twist the front of the goal of more and more clear.

一咬牙，毫不犹豫地出发了，随着我全身上下地扭动，前方的目标越来越清晰了。

They were on the verge of flying—beating their wings and screaming as they jumped up and down, never daring to take off.

它们就快飞起来了——不停地扇动翅膀，尖叫着跳上跳下，但总不敢飞起来。

Pieces of eight, minted out of South American silver, crossed the Pacific and were used up and down the coast of Asia.

以产于南美的银铸造的西班牙古银币跨越了太平洋，被往返于亚洲沿岸的人所使用。

The Munich Oktoberfest is a fine example of this, but there are many others taking place up and down the country to whet your appetite, and give you a real feeling for the country.

慕尼黑啤酒节是一个很好的例子，但也有许多其他国家发生的向上和向下的国家刺激你的食欲，并给你一个真实的感觉的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。