half-life time 中文意思是什麼
half-life time
解釋
半衰期,半壽期-
So in fact, if they senesce just a tiny tiny bit over time - - that is, if their half - life gets shorter, very very slowly - - we wouldn ' t actually be able to tell that this was happening in the time that we took our measurements, because the acceleration in the rate of atoms decaying ( relative, of course, to the number that had not decayed already, which is always decreasing ) would be too tiny to be statistically detectable
所以在事實上，如果它們隨時間衰老得只那麼一點點， ?就是說，如果它們的半衰期縮短得非常慢?那麼我們實際上不可能知道，在我們測量期間發生過衰減，因為原子衰減的速率加速得太小，統計學上檢測不出（當然，是相對于不曾衰減的數目而言，不曾衰減的原子數目總是在減少） 。 -
The quest continues for plasminogen activators with higher potency, specific thrombolytic activity, fibrin selectivity and longer half - life time. the recent progress in the protein engineering of plasminogen activators, including t - pa, u - pa, streptokinase, staphylokinase and other novel plasminogen activators, was presented in this article
一些pa突變體及新型溶栓劑，如k2p tnk - pa和star等的臨床實驗結果表明它們在延長體內半壽期增強對血纖維蛋白選擇性和溶栓效率等方面有較大的改進。 -
I only am the hope have a family, not brings the exhausted body and mind to get in the home, a human spirit has not been only a place which sleeps, i hoped the family is warm detailed and, even if sometimes also can have a spot the war, even if i am a quite lazy person, i still can be beautiful in a sunlight morning make a delicious breakfast for the beloved woman, even if i am a comparison like peacefully, i still can accompany her street which makes noise to stroll the store, even if finally is any which is penniless has not bought, even if i sleep does not like disturbing, i still can for the midnight on her but actually cup of lukewarm water which thirstily awakes, even if worked one day to get the home to lie down on the bed, also still can hear her to say the neck is sore time can massage for her, most important, even if our life is very simple, very tranquil, i still can treat princess to be ordinary forever likely dote on her, and own latter half of one ' s life love, complete is accompanying her
我只是希望擁有一個家，一個不是帶著疲憊的身心回到家裡，沒有一點的人氣只是一個睡覺的地方，我希望的家是溫暖的詳和的，即使有的時候也會有一點點的戰爭，即使我是一個比較懶的人，我依然會在一個陽光明媚的早晨為心愛的女人做一頓可口的早餐，即使我是一個比較喜歡安靜的，我依然會陪她在喧鬧的街道一家一家的逛著商店，即使最後是兩手空空的什麼也沒有買到，即使我睡覺的時候不喜歡被打擾，我依然會為半夜被渴醒的她倒上一杯溫水，即使工作了一天回到家躺在床上，也依然會聽到她說脖子酸痛的時候會為她按摩，最重要的，即使我們的生活很簡單，很平靜，我依然會象對待公主一般的永遠的寵愛她，並且將自己後半生的愛，全部的陪著她 -
Someone spends half of his life - time savings on a seaside holiday overseas and ends up coming back disappointed ; and there are people who can row their boats happily in a flood devastated area and really having good fun
有人花費半生積蓄往外國的海灘度假，結果卻敗興而返；有些人卻可以在水災災區中劃艇作樂，玩個不亦樂乎。 -
After measuring dark current, photocurrent and response to x pulse of gaas detector before and after 1. 7 mev electronic radiation, the response tune, fall time of trailing edge, full width of half maximum ( fwhm ), sensitivity, carrier life, mobility are researched and contrasted. the result shows that the response speed of detector, time resolution ratio and nonlinear of back edge of output signal have been improved greatly after electronic radiation. though sensitivity of the detector reduces, its measuring range can be widened
為了使探測器的性能得到進一步的提高，我們對其進行了電子輻照改性，並測量了本徵砷化鎵探測器和經過1 . 7mev電子輻照的探測器的暗電流、光電流及對x射線的脈沖響應，並對其響應時間，后沿下降時間，半高寬（ fwhm ） ，載流子壽命，靈敏度進行對比，研究，結果顯示經電子輻照后的探測器的性能得到了改善，使響應速度，分辯率進一步提高，並消除了探測器輸出信號后沿的非線性，雖靈敏度有所降低，反而使其測量范圍得以拓寬。 -
The early stages were as cagey as last week match but the game sparked into life shortly before half - time with a spate of four bookings in just a handful of minutes
比賽的初始階段，雙方仍採取了與首回合同樣的謹慎戰術，但上半場中段雙方短時間的連續犯規，終于使比賽擦出了激烈的火花。 -
Firstly, this thesis was based on thoughts and theories of chemistry teaching material experiment parts of establishments that was discussed, and stressed on studying the united states reformation of the high school chemistry teaching material practices since half a century ; and summed up five characteristics on experiment parts of establishments : first has more than hours of the experiment lesson, and student need use half time do the experiment ; second is to emphasize strict and careful science attitude, and educate students as scientists to do the experiment ; third is that a chemistry experiment should face to the society, face to the life and face to the other related course ; fourth is that investigating types and its ability have been used as the important contents on chemistry experiment reform and development ; fifth is that chemistry teaching material establishment emphasize universal science and technique knowledge, and increase citizens chemistry science attainments
本文首先在論述化學教材實驗部分編制的思想理論基礎上，重點探討美國半個世紀以來中學化學教材的改革實踐，並總結出了其實驗部分編寫的五個特點：一是實驗課時較多，學生需用一半的學習時間做實驗；二是強調嚴謹的科學態度，教育學生象科學家那樣去做實驗；三是化學實驗面向社會、面向生活、面向其它相關學科；四是探究式學習和探究式能力培養一直作為化學及化學實驗改革和發展的重要內容；五是化學教材編制強調普及科學技術知識，提高公民的化學科學素養。 -
At the temperature about 20, pao showed certain activities the reservation time of fcc was 5. 1 minutes the half - life of fcc was 34. 66 minutes in without light
在hplc洗脫圖譜上fcc的洗脫時間約為5 . 1min ， pao催化pheidea降解的最適溫度約是20 。 -
A mere half second of time lost to task switching can mean the difference between life and death for a driver using a cell phone, meyer said
邁耶稱，對一位驅車駕駛過程中打手機的司機而言，在任務轉換過程中，半秒鐘的時間延誤就能決定他的生死存亡。 -
The time it takes for half of its original amount to decay is called the half - life
衰變至只剩下原來數目一半所需的時間稱為該核素的半衰期。
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