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significance和importance的區別 significance

生活百科significant名

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1significant名詞significant名詞是：significance，意思是：意義；重要性；意思 。讀音為：英 /s?ɡ?n?f?k?ns/美 /s?ɡ?n?f?k?ns/ 。
significance的短語：
1.economic significance經濟重要性 。
2.statistical significance統計顯著性；統計數據 。
3.significance test顯著性檢驗；顯著性測定 。
4.significance level[化]顯著水平，顯著性水平 。
5.political significance政治意義 。
significance的例句：
It has a wider significance. 它有更廣泛的意義 。
They discussed the statistical significance of the results. 他們討論了這些結果在統計學上的意義 。
2sense和significance表示“意義”有什么區別sense表示的“意義”是像“在這種意義下”這個短語中“意義”的意思 。
而significance表示的則是“這么做毫無意義”中“意義”的意思 。
仔細體會一下，這兩個“意義”在漢語中的意思是不完全一樣的 。
例句：
In a sence, there's no significance in doing so.
從某種意義上講，這么做是沒有意義的 。
3significance是什么意思significance
[英][s?g?n?f?k?ns][美][s?ɡ?n?f?k?ns]
n.
意義; 重要性; 意思;
復數：significances
例句
Ideas about the social significance of religion have changed over time.
關于宗教的社會意義的看法已經隨著時間的變遷而改變 。
4Significance6.2.1 Implications for granite and adakite geneses
Granites play a major role in the evolution of the continental crust and in the beneficial concentration of economic quantities of important materials.However，granitic rocks display great diversity，the source of which，even today，is still one of the most debated subjects in granite petrogenesis.The consensus view is that granites are typically generated during periods of heat and/or mass transfer from the mantle to the crust，either by partial melting of crustal rocks or by FC or AFC of mantle-derived basaltic magmas.Nevertheless，the evidence for direct contribution of mantle-derived magmas in granite production is often circumstantial.The studies over the past last decade have also shown that granitic rocks could be generated by partial melting of young subducted oceanic crust during subduction.The Archaean tonalite-trondhjemite-granodiorite magmas are also proposed to be directly linked to slab-melting，although there exists some controversy on this topic.It is，however，considerably uncertain or argumentative whether the granites could have been generated directly by partial melting of the lithospheric mantle.This contribution gives a case study that granite can be derived directly by partial melting of lithospheric mantle.It is，therefore，important to understand the source and origin of diverse granites.
Adakite was proposed over a decade ago to be products of the melting of young subducted oceanic crust related to incipient subduction.Its research has received widespread attention due to its close relation to porphyry copper deposits，and many other models for adakite generation have been proposed，such as partial melting of basaltic lower crust or of delaminated lower crust and AFC processes.Adakite formed by these processes usually shows characteristics of low Mg and high Na rather than high K，as demonstrated by experimental studies.However，many adakitic rocks especially in continental collision setting，showing some features of typical adakite in arc settings，also have much higher K2O contents.The mechani ***responsible for such K-enrichment in adakite is poorly understood.This contribution indicates that some potassic rocks showing adakitic affinities especially in continental collision environments such as Yulong could have been derived directly by low-degree melting of the phlogopite-garnet clinopyroxenite that was mainly produced by the silicate-carbonate fluid metasomati ***in a lherzolitic or harzburgitic lithosphere，whereas most adakites in arc settings was derived by partial melting of the amphibole eclogite and/or garnet amphibolite transformed by a basaltic source of subducted oceanic crust，which is helpful to further understand the geneses of adakite and its associated porphyry deposits.
6.2.2 Implications for genesis of porphyry copper deposits in continent collisional setting
【significance和importance的區別significance】Follow the traditional genetic model，porphyry copper deposits are formed in island or continental arc settings，and the related ore-bearing porphyries are derived by partial melting of mantle wedge.Such a mantle-derived melt evolves to calc-alkaline felsic composition by subsequent crystal fractionation and/or crustal contamination.However，a series of studies in recent years indicate that in continental-and island-arc settings，the normal calc-alkaline porphyries only host*** all porphyry copper deposits，whereas the host rocks of huge porphyry copper deposits have adakitic affinity，derived by direct melting of subducted slab.Recent studies also demonstrate that giant porphyry copper deposits such as the Yulong and Gangdese porphyry copper ore belts in the Tibetan Plateau were also formed in a continent collisional setting.However，the origin of orebearing porphyries and the genesis of associated porphyry copper deposits in such a continent collisional setting remain controversial.Ma（1990）and Tang and Luo（1995）suggested that orebearing porphyries are calc-alkaline and may have been derived by crystal fractionation and/or crustal contamination of mantle-derived basaltic magma.Hou et al.（2004）argued that ore-bearing porphyries are adakitic rocks and must have been originated from direct melting of thickened lower crustal rocks.In contrast，the present contribution，by a series of comparison between orebearing and barren porphyries，confirms that the host rocks are shoshonitic with some adakitic affinities and could have been derived directly by progressively melting of verns of phlogopite-garnet clinopyroxenite in lherzolitic lithosphere.This work helps us to better understand the geneses of ore-bearing porphyries and the associated porphyry copper deposits in continent collisional setting.It also allows us to better discriminate between ore-forming and barren porphyries，which has important significance for copper exploration，especially in the Yulong porphyry copper ore-belt.

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