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Annular syphilid is an uncommon presentation of secondary syphilis, previously seen almost exclusively in black.

摘要环状梅毒是二型梅毒皮肤表现中较少见到文献记载深黑人出现比例较高。

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Numerical simulations of laminar flow separation and reattachment occurred in an annular backstep passage are performed by the SIMPLER algorithm.

用SIMPLER算法对流过环形后台阶通道内层流分离和再附着进行了数值模拟。

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According to the syntaxis skill of shock wave and the theory of effective charge,the annular conical booster pellet structure is designed.

根据冲击波聚技术原理及有效装药理论,设计出环锥形传爆药装药结构。

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An annular cavity placed around the anode of arcjet was designed to form a regenerative cooling channel on the base of an arc jet.

该文在原有电弧加热发动基础上进行改进,设计了覆盖发动环形空腔,形成再生冷却通道。

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The paper introduces a new type slim - hole MWD tool, which is capable of accurately measuring downhole annular pressure and pressure effect caused by swabbing and waveness.

文章介绍一种新型小井眼随钻测井仪,它能够精确测量井底环空压力及抽吸和波动引起压力效应。

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A new multiflow model of a pressurized spout fluid bed with a draft tube has been developed to investigate the voidage and the velocities of particle and gas in spout and annular region.

采用双流体模型对增压导向式喷动流化床内喷动区和环形区气固运动速度和空隙率进行数值模拟。

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当月 CNN 10 学生英语

If you say annular, put your hands up.

如果你认为的话,那就答对了。

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当月 CNN 10 学生英语

Total, Annular, Johnny Cash or Partial?

、全环呢?

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大英百科全书

There's also a phenomenon known as an annular eclipse.

还有一种现象叫做

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少儿畅学课堂

The third type of solar eclipse is an annular eclipse.

第三种

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连线杂志

And we did a circular blade, annulars we call it, outlet of air.

为我们制作的一个圆形叶片,我们叫它 annulars,空气出口。

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CRI在线 2020年7月合集

The annular solar eclipse was seen across much of Asia and West Africa.

亚洲和西非大部分地都可以观测到

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当月 VOA Special English

The one that will happen on October 14 is called an " annular solar eclipse."

10月14发生的被称为“”。

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大英百科全书

People don't talk about annular eclipses too often, which is too bad, because they're awesome.

人们经常谈论,这就,因为极其壮观。

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Crash Course 天文篇

This technical name for this shape is annulus, so this event is called an annular eclipse.

严格来说这个形状的名称环。所以这一现象就被称为

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CNN 10 暑期特辑

That leaves the annular ring of sun that can be visible in this weekend's celestial event.

这样一来,本周末的天象中就可以看到阳的环形圈了。

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PBS趣味科普

The same root that gives us words like annular eclipse, named for the halo of light visible during some solar eclipses.

同样的词根给了我们像这样的词,以一些期间可见的光环命名。

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少儿畅学课堂

Many times, the moon only blocks part of the sun's light, resulting in either a partial eclipse, or an annular eclipse.

多数情况下,月亮只会遮住部分阳光,造成或者

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CNN 10 学生英语 2017年2月合集

And though it might not happen every February, it's still annular, which has a nice ring to it.

虽然它可能会在每年二月发生,但它仍然环形的,它有一个很的环。

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大英百科全书

There are no annular lunar eclipses, because the Earth is so big that its umbra always appears larger than the moon.

没有月环,因为地球大了,它的本影总显得比月球大。

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CRI在线 2020年7月合集

Annular eclipses occur about 66 times a century and can only be viewed by people in the narrow band along its path.

现象在一百年内大约发生66次,只能在经过的狭窄带上才能观测到。

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听力文摘

In the far future, earth will only get annular and partial solar eclipses because our moon is moving further away.

在遥远的未来,地球只会出现,因为我们的月球正在远离地球。

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当月 VOA Special English

They advise using safe viewing glasses for the sun or a safe handheld viewer for the sun at all times during an annular solar eclipse.

他们建议在期间始终使用安全的阳观测眼镜或安全的手持阳观测仪。

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少儿畅学课堂

During an annular eclipse, the moon is at its farthest distance from Earth, making the shadow that falls on the Earth's surface smaller than usual.

出现的时候,月亮离地球的距离最远,其投射在地球上的影子也就比平时小了。

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工程学速成课

The annular space between each pile and the clay will be filled with low-strength material only after the hydraulic jacking operation is complete.

只有在液压顶升作业完成后,每根桩与粘土之间的环形空间才会填充低强度材料。

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CNN 10 暑期特辑

" Annular" means it has the form of a ring, and this type of eclipse happens when the moon passes directly between the sun and the Earth.

“环形”意味着它有一个环的形状,这种月发生在月亮直接经过阳和地球之间的时候。

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