atomic standard 中文意思是什麼
atomic standard
解釋
原子基準-
The hong kong time standard is maintained with a caesium beam atomic clock kept in the observatory
:天文臺的銫原子鐘是用來訂定本港的時間標準。 -
Reliability enhancement test of the space - borne rubidium atomic frequency standard
星載銣原子頻標的可靠性強化試驗 -
In order to meet the requirements of nda measurement, the laboratory of technical research for nuclear safeguards of china institute of atomic energy ( ciae ), is being in charge of developing four sets of nda standards : one set of segmented gamma - ray scanner ( sgs ) uranium standard, one set of sgs plutonhim standard, one set of plutonium isotopic standard, and one set of active well coincidence counter ( awcc ) standard. in this dissertation some pivotal techniques on quality control in developing of nda nuclear standards above were emphatically studied
中國原子能科學研究院核保障技術重點實驗室研製分段y掃描裝置( sgs : segmentedgamma - rayscanner )鈾工作標準樣品、 sgs鈈工作標準樣品、鈈同位素標準樣品和有源中子井型符合計數裝置( awcc : activewellcoincidencecounter )鈾工作標準樣品來滿足核材料nda測量的要求。本論文重點對上述nda核標準樣品研製過程中質量控制的一些關鍵技術進行了研究。 -
Standard test method for elements in water by direct - current argon plasma atomic emission spectroscopy
用直流氬等離子體原子發射光譜法測定水中元素的標準試驗方法 -
Standard test method for elements in water by inductively - coupled argon plasma atomic emission spectroscopy
用電感耦合氬等離子原子發射光譜法對水中元素的標準測試方法 -
Standard test method for determining elements in waste streams by inductively coupled plasma - atomic emission spectroscopy
感應耦合等離子體原子發射光譜法測定污水流中元素的標準試驗方法 -
Standard test method for the determination of uranium by ignition and the oxygen to uranium atomic ratio of nuclear grade uranium dioxide powders and pellets
用點火和核級二氧化鈾粉末和顆粒的氧鈾原子比測定鈾的標準試驗方法 -
Standard test method for trace metals in gas turbine fuels by atomic absorption and flame emission spectroscopy
原子吸收和火焰發散分光光度法測定氣輪機燃料中痕量金屬的標準試驗方法 -
Determination of micro - elements in grains by flow - injection microwave plasma torch atomic emission spectrometer simultaneously with on - line standard addition
流動注射在線標準加入法同時測定糧食中微量金屬元素 -
Standard test method for determination of contaminants in gas turbine and diesel engine fuel by rotating disc electrode atomic emission spectrometry
轉盤電極原子發射光譜法測定氣輪機和柴油發動機燃料中雜質的標準試驗方法 -
The hong kong observatory ( hko ) uses a caesium beam atomic clock to maintain the hong kong standard time, which is the official time of hong kong
香港天文臺銫原子鐘提供的香港標準時間,是香港的法定時間標準。市民可以透過網際網路使用天文臺網路時間服務,把電腦時鐘對準香港標準時間( -
Standard test method for trace metals in petroleum coke by atomic absorption
用原子吸收法測定石油焦炭中痕量金屬的標準試驗方法 -
The subjects under research include high - performance rubidium atomic frequency standard, microwave and optical trapped ion frequency standard and cold atom frequency standard, etc. the lab
目前正在開展的研究課題有高性能銣頻標、離子阱微波頻標和光頻標、冷原子頻標等。 -
We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase
研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律,並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時,原子對探測場和驅動場色散的響應不再為零,雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益(吸收)的時間演化規律明顯改變;隨著失諧的增大,探測場增益(吸收) 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長,振幅和穩定值變大 -
Standard test method for tin in reforming catalysts by atomic absorption spectrometry
重整催化劑錫含量測定法 -
The adjustment will be carried out by sticking an extra second into atomic clocks worldwide at the stroke of midnight coordinated universal time, the widely adopted international standard, the u. s
據美國國家標準與技術協會介紹,全世界的原子鐘都將在協調世界時2005年12月31日午夜加上一個閏秒。 -
Icp - aes standard test method for determination of trace elements in middle distillate fuels by inductively coupled plasma atomic emission spectrometry icp - aes
用感應耦合等離子體原子發射光譜法測定中間餾出燃料中痕量元素的標準試驗方法 -
The composition, structure, and properties of the as prepared composite films have been characterized in detail by uv - vis, ftir, and x - ray photoelectron spectra, ellipsometry, scanning electron microscopy, atomic force microscopy, transmission electron microscopy, fluorescence spectroscopy, and standard four - probe technique
採用uv - vis光譜、 ftir光譜、 x -射線光電子能譜、橢圓光度法、掃描電子顯微鏡、原子力顯微鏡、透射電子顯微鏡、熒光光譜和標準四探針技術對所制備的納米復合膜進行了組成、結構和性能表徵。 -
Standard practices for digestion of water samples for determination of metals by flame atomic absorption, graphite furnace atomic absorption, plasma emission spectroscopy, or plasma mass spectrometry
用火焰原子吸收法石墨爐原子吸收法等離子體發射光譜法或等離子體質譜法測定金屬含量用水試樣浸煮的標準實施規范 -
Standard test method for determination of wear metals and contaminants in used lubricating oils or used hydraulic fluids by rotating disc electrode atomic emission spectrometry
用旋轉盤電極原子發射光譜法測定已用潤滑油或已用液壓流體中雜質的標準試驗方法
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