Characteristics of flow-separating calibrator for UHV/XHV;
分流法超高/极高真空校准装置性能研究
REVIEW OF F. WANTANABE′S STUDY ON XHV MEASUREMENT;
渡边文夫的极高真空测量研究评介
A novel technique has been successfully developed to calibrate the ultra high vacuum(UHV) and extra high vacuum(XHV),which consists of XHV/UHV chambers,a flow separation and a gas supply.
超高/极高真空校准装置由极高真空(XHV)系统、超高真空(UHV)系统、流量分流系统和供气系统四部分组成。
Discussion on condition testing the degree of ultimate vacuum of ultrahigh vacuum diffuse pump oil;
超高真空扩散泵油极限真空测试条件的探讨
The wake shield facitity(WSF) extreme high vacuum system makes use of the property that its orbiting velocity is several times higher than the ambient atmosphere s thermal velocity,leading to a very high pumping by space,hence a rarefaction region up to extreme high vacuum is produced in the wake rigion of WSF.
轨道分子屏真空系统,是利用分子屏轨道飞行速度远大于轨道环境大气的平均热运动速度,使空间环境对分子屏产生理想的抽速,在尾部形成气体分子的稀化区,达到极高真空。
The third formula is the formula (8,18) about vacuum polarization.
在该书173页上的关于真空极化计算的公式(8,18)。
The one-loop vacuum polarization is calculated for untwisted and twisted scalar fields in a flat space-time with the topology S1×R3.
本文中我们首先计算了在拓扑结构为S~1×R~3的非Minkowski时空中扭曲标量场和非扭曲标量场的真空极化，然后考虑了真空极化对光子传播的影响，我们发现除了光子的极化方向和传播方向都垂直于紧致化方向的情形之外，非扭曲标量场的真空极化使所有其他的光子模式都获得实的拓扑质量从而导致这些光子以亚光速传播；但是，扭曲标量场的真空极化使光子获得虚的拓扑质量以致他们以超光速传播。
It is unveiled that during most of the Mesozoic (200~100 Ma) the paleointensity of the geomagnetic field was very low, only one-third of the mean Cenozoic value, that the geomagnetic field shows no reversals from 124 to 83 Ma, and that the true polar wander (TPW) almost remained a standstill from 170 to 110 Ma.
本文介绍了90年代以来地球物理学在地球磁场方面(地球磁场古强度,地磁场极性反转频率以及真极移)的研究成果,揭示了200～100Ma全球低的地球磁场古强度;124～83Ma低的极性反转频率以及170～110Ma近乎停滞的真极移。
The episodic geomagnetic reversal friquencies and the true polar wander could correlate with lower/upper mantle convection and lithospheric dynamics.
本文在地磁极性年表、磁性地层学基础上分析地磁场倒转速率自石炭纪以来的变化特征与地核／下地慢耦合关系，并吸收前人有关真极移方面的研究成果，进一步讨论地磁场倒转速率、真极移速率、下／上地幔对流以及岩石圈动力学过程的关系，以及与东亚岩石圈动力学过程可能存在的联系。
According to0the law of relationship between true polar wander and crustalmovement, the idea of southward movement of the Chinese continent is expoundedwith reference to the North China example.
根据地球真极移和地壳运动关系的规律,以华北为例,阐明中国大陆南移的观点。
"A wonderful idea! I've wasted a lot of time looking for a name for the baby!
“是呀，我真极费心思了。
She's remarkable-truly remarkable.
她好极了--真的好极了。
Oh! Isn't that nice!
哎呀！那真妙极了。
Oh, that's wonderful! That's wonderful!
噢， 真是美极了 ，真是美极了！
consumable electrode vacuum arc furnace
自耗电极真空电弧炉
vacuum hot cathode rectifier
真空热阴极式整流器
The meal is really terrific.
这一餐真是好吃极了。
He is blessed with excellent health.
他身体好极了, 真有福.
It is nice of you to come here.
你到这里真好极了。
biplanar vacuum photodiode
双平面真空光电二极管
hot cathode magnetron gage
热阴极磁控管真空计
plate-detection type vacuum tube voltmeter
板极检波真空管电压表
The views along the shore is wonderful.
沿岸光景真好极了。
Terrific. Beijing Opera is so attractive.
好极了，京剧真是吸引人。
Now you're shouting.
说得真恰当，说得好极了。
bootstrap cathode follower
仿真线路阴极输出器
But keen as mustard!
真叫小积极分子儿！
The gardenparty is a great success.
那个园会真是圆满极了。
