ld time 中文意思是什麼
ld time
解釋
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The epitaxial struture for ld is an ingaas / gaas / algaas ssqw grin sch structure and the width of the array bar ia 4mm. the low theshold current 2. 9a the output power 20w at 17. 5a have been achieved by sioi isolation, ohmic contact and facet coating processes. the central wavelength is 979nm. at the same time, model analyses on the structure of the ssqw ld and the fabrication processes have been made for further research
激光器的生長結構採用ingaas / gaas / algaas分別限制應變單量阱線性緩變折射率波導結構，列陣條寬為4mm ，通過sio _ 2掩膜，歐姆接觸和腔面鍍膜等工藝，實現了閾值電流為2 . 9a ，驅動電流為17 . 5a時輸出功率為20w 。 -
The results suggested, ( 1 ) the response pattern of the item is good ; ( 2 ) the internal consistency reliability and test - retest reliability of the scale is excellent. ( 3 ) the current scale has very good construct validity, criterion - related validity and content validity. ( 4 ) difference exists between male and female, and among the four grades in all the 7 subscales, but no time effect exists in ld
結果表明： （ 1 ）評價的回答模式分佈基本合理； （ 2 ）本量表具有較高的內部一致性系數和重測信度系數； （ 3 ）本量表具有較高的結構效度、效標關聯效度，內容效度也較好； （ 4 ）各分量表存在顯著的性別和年齡差異，但學習障礙的時間效應不顯著。 -
Through such a study, it is also shown that when the time delay is long enough such that the stability switches of the equilibrium of system halt, the bifurcation branches originated from the critical time delays cannot be surely stable or unstable in the whole solution space, that is, their stability depends on cases. this phenomenon also implies that the stability of the periodic solutions on the bifurcation diagrams indicates only the stability on the local center manifo ld. some distinguished features of delay dyn
利用打靶法的數值結果說明了當系統平衡點不再發生穩定性切換時，源自這些臨界時滯處的解支的穩定性在整個解空間的穩定性具有不可判定性，這也說明由多尺度法所得高階近似判定的解支的穩定性事實上只表示解支在局部中心流形上的穩定性，而非在整個解空間中的穩定性。 -
At the same time, the rapid progress on devices requires better ohmic contact between metals and gan, for example, the short - wave ld requires specific contact resistivity lower than 10 - 4 cm2
Gan材料與金屬歐姆接觸的性能對器件有著重要的影響。低阻歐姆接觸是gan基光電子器件所必需的。 -
In the chapter 4, a two rod series connection nd : yvo4 all - solid - state laser with a flat - flat cavity two - end - pumped by a fiber - coupled ld was reported for the first time to our knowledge in this paper at home
在以上討論的基礎上，本論文在第四章在國內首次報道了一種光纖耦合ld雙端泵浦雙棒串接nd ： yvo _ 4平平腔全固態激光器。 -
The very intense blue upconversion luminescence was observed by naked eyes under 978 nm laser diode ( ld ) excitation. the relationship between the ld working current and intensity of red and blue upconversion luminescence was studied. the intensity of blue upconversion decreased with time as the irradiation of 978 nm ld
變功率的研究表明，上轉換發光的強度與978nm激光二極體的功率並不是簡單的平方或三次方關系，藍光上轉換發光強度在強功率輻照下有明顯的減小。 -
Gas - sensing technology, which employs laser diode ( ld ) and light emitted diode ( led ) as light resource, has multitude advantages over traditional approaches, such as high sensitivity, multiple selection, wide dynamic range, good signal to noise ratio and quick response time
以半導體激光器或發光二極體作為光源的氣體傳感技術在靈敏度、選擇性、動態范圍、信噪比和響應時間等方面比傳統方法具有諸多優點。 -
For ld - ( zd, ed ) : assign to each edge of ed an independent. non - negative random variable u ( e ) ( which we think of as being the time required for fluid to flow along e ) with distribution function f. this is our first - passage percolation model
對圖l 『 （ z e勺，如果e 『中每一條邊e都有一個取值為非負的，分佈為廠的隨機變量叫。 ）與之對應（ 。何表示液體通過邊e所需要的時間） ，且。 -
Ld 50 time
半數致死時間 -
A resident in discovery bay disclosed in june 2002 that part of the land in north lantau country park had been occupied without authorisation by a developer for 20 years. it turned out that the developer concerned had in fact applied to the government in 1981 for the use of the land under a short term tenancy ( " stt " ), but records on how the application had been handled at that time could not be retrieved due to the failure of the lands department ( " ld " ) to keep the relevant files properly. it was only in mid - 2003 that the ld wrote to request the developer concerned to lease the land under a stt
一名愉景灣居民於二二年六月揭發有發展商未經許可佔用北大嶼山郊野公園部分土地長達二十年，但原來該發展商於一九八一年已向政府申請以短期租約方式使用該幅土地，只是地政總署沒有妥善備存有關的檔案，以致未能翻查有關處理上述短期租約申請的紀錄，而該署在二三年年中才去信要求有關的發展商以短期租約方式租用該幅土地。 -
At the same time, young people shou ld be encouraged to communicate with their pe ers and develop their interpersonal skills, which & nbsp ; may help them greatly to reduce dependence & nb sp ; on their parents and are essential in the & nbsp ; maintenance of healthy mental condition
同時，應該鼓勵年輕人和他們的同齡人交往，發展他們的交際能力，這將幫助他們極大地減少對父母的倚賴並且保持健康的精神狀態。
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