zero mass 中文意思是什麼
zero mass
解釋
零質量的-
Standard solar constant and zero air mass solar spectral irradiance tables
標準太陽能常數和氣團起始陽光能光譜輻照表 -
According to goldstone theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken
由goldstone理論可知，當手征自發破缺時會生成零質量的goldstone玻色子。 -
Fundamental particles have an intrinsic mass known as their rest mass ( those with zero rest mass are called massless )
基本粒子有個稱為靜止質量的內在質量（靜止質量為零的粒子稱為無質量粒子） 。 -
In quantum chromodynamics ( qcd ), vacuum is not trivial, that is, vacuum carry quantum numbers. such a behavior is embodied by non - perturbative con - densates of quarks and gluons. since hadrons are excitations with respect to the vacuum, hadronic properties are ultimately related to properties of the vacuum. based on the vacuum structure, some hadron properties have been described well. in the low energy region, qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement, which are closely related to the vacuum characteristics of qcd. much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics, and the quark condensates give an expression to chiral symmetry spontaneous breaking. according to goldstone ' s theorem, the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken. there are two ways : inear and non - linear methods to carry out this constraint. in our paper, we will use the non - linear method
大量實驗和理論研究表明，手征對稱自發破缺對于理解低能強相互作用十分重要，而夸克凝聚又是導致手征對稱自發破缺的因素。按goldstone理論，伴隨手征對稱自發破缺應該會有零質量的goldstonebosons產生。而對于這一條件的實現有線性和非線性兩種方法本文將用非線性的方法將手征對稱自發破缺應用於su （ 3 ）模型即重子八重態，得出描述其強相互作用的手征對稱自發破缺lagrange密度。 -
A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass
引力微子一種假想粒子，被假定為引力相互作用的量子，並被推測為具有無限長壽命、零電荷和零靜止質量 -
Using mass flux controller ( mfc ), gas regulation system achieved accurate mix of two kinds of gases, steel bottle gas ( some compressed gas ) and zero air ( pure air ). for the sake of data transmission between dynamic air regulator and other equipments in the monitoring air quality system, normal digital interface ( rs - 232c ) make correlative role of communication interface so that automatic survey could be achieved
本儀器採用國際先進的自動控制配氣原理，採用精密質量流量控制器（ mfc ）來控制鋼瓶氣（某種壓縮氣體）與零空氣（純凈無污染的空氣）的混合比來得到精確濃度的校準氣體，以便於對各種氣體監測儀進行高精度校準。 -
The diffusion model and numerical simulation model for chaff clouds are modeled on the assumption that the speed of air where chaff locates is a winner random process and the mass of chaff is zero so it can trace the atmosphere speed very well
摘要假定箔條所在位置處大氣運動速度是一個維納隨機過程，同時在忽略箔條的質量時箔條的運動完全反應當地大氣的運動，在此基礎上建立箔條雲團的擴散模型及數值模擬模型。 -
After our careful analysis, we find that there are finite part which is temperature dependent in this zero - point energy. so we have separated this part and discussed its influence to the effective nucleon mass. the result shows that this part has remarkable contribution at high temperature
但經仔細分析會發現，零點能中含有與溫度相夫的有限部分，我ilte它分離出來並討論了其xde子有效質量的影響，發現在高溫下，這一零點s眶正有著顯著的貢獻 -
The control list has now been extended to cover the transfer of equipment capable of delivering a payload of zero mass to a range of at least 300 km
管制清單現已擴展至可把零質量載荷投放至起碼300千米外的設備。 -
Schematic diagram showing the relationship between the zero - point energy and molecular mass for hydrogen, deuterium and hd. ( image courtesy of mit ocw
示意圖說明氫分子、氘分子、氫氘分子的零點能與分子量之關系（本圖由麻省理工學院開放式課程網頁提供） 。 -
Another problem is whether neutrinos have non - zero mass
另一個大難題是究竟中微子有沒有質量？ -
It was found that the ultra - fine powder can flow smoothly in a spouted bed with a draft tube under some sorts of design parameter and operating condition, thus a new effective method to improve fluidization quality of the ultra - fine powders is obtained ; at higher supplied gas velocity, an increase in the solid circulation rate is observed ; the extent of the distance between the nozzle and the draft tube inlet result in the promotion of the solid circulation rate ; the solid circulation rate increase with increasing the draft tube diameter or the bed mass ; the gas bypassing is nearly zero in the present work ; and the solid flow in the annulus is observed as a moving bed
結果表明：在一定的床層結構和操作條件下，超細粉可以在導向管噴動床中實現平穩流化，從而為改善超細粉的流化質量提供了一種有效的新方法；固體循環速率與噴動氣流量、導向管直徑、導向管底部與噴嘴出口間距以及床層裝填量成正比；氣體則基本上不存在「旁路」現象；環隙區中的顆粒流動表現為一移動床特徵。 -
One is to use fourier transformation to convert the source signal from time domain to frequency domain and to discard high frequency harmonious components upwards of 19 ( gb / t14953 - 93 d5. 3 demanding ), then to have static huffman coding to the quantized char array which is composed of reserved direct current component and basic wave and each high frequency " s amplitudes and angles. the other is to use discrete wavelet transformation to convert the source signal from time domain to frequency domain and to set the high frequency coefficients that its absolute value is smaller than the given threshold to zero, then to have dynamic huffman coding to the quantized char array which is composed of multiple, wavelet ' s level, datum length, low frequency coefficients and reserved high frequency coefficients. mass simulinks and analyses under the two circumstances have done to show that data compression ratio is small and the relative error is also small and within the permission of engineering and the compression problem can be solved in theory of measured datum of power system
第一種情況的壓縮方法為：採用傳統的傅立葉變換把原始信號從時間域變換到頻率域，舍棄20次及其以上的高次諧波成分（保證了gb / t14953 ? 93d5 . 3要求） ，然後對保留的直流分量、基波和各次諧波的幅值和相角數據量化后和量化時分別乘以的倍數系數構成一個數組，以字元形式保存，採用靜態huffman編碼對變換數據進行壓縮；採用離散小波變換把原始信號從時間域變換到頻率域，然後對分解得到的高頻系數進行閾值量化處理，對乘以的倍數系數、小波變換的階數、小波變換后的低頻、各級高頻以及原始數據長度、量化后的低頻系數以及保留的高頻系數大小、位置構成一個數組，以字元形式保存，採用動態huffman編碼對這個文件進行壓縮。 -
The microjet is a zero net mass - flux and does n ' t require internal source of jet fluid. its control system is simple, light and little energy consumed. microjet is superior to conventional jet
微射流控制系統簡單、輕便、能耗極小且不需要工質源，初步顯示出了常規射流控制方法所不具備的優勢，具有非常廣闊的應用前景。
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