首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 78 毫秒
1.
本文引用Jaynes─Cummings模型研究了二能级原子在单光子场作用下原子的时间行为.计算结果表明它展现出崩塌与回复效应.  相似文献   

2.
酒泉地区早期石窟分期试论暨远志ClassificationoftheEarlyCavesinJuquanAreaJiYuanzhiTheearlygrottoesdiscoveredinJuquanareacontainmainlytheMt.Wen...  相似文献   

3.
1 表示两地间的“所属关系” ,用in。例如 :Macao(澳门)isinthesouthofChina.ChinaliesintheeastofAsia(亚洲).2 表示两地间的“毗邻关系” ,用on。例如 :JilinisonthesouthofHeilongjiang.Korea(朝鲜)liesonthenortheastofChina.3 表示两地间的“相隔(离)关系” ,用to。例如 :JiangsuistothenorthofFujian.JapanliestotheeastofChina从“两地…  相似文献   

4.
NomenclaturesAArea(m2)EEnergyControl(J)fPressureLossCoeficientaVoidFractionHSpecificEnthaply(J/kg)IInertance(m)KFrictionLossC...  相似文献   

5.
Aim :TheJournalofZhejiangUniversitySCIENCEiseditedbyaninternationalboardofdistinguishedChineseandforeignscientists,andisaimedtopr  相似文献   

6.
TextualResearchintotheContentoftheMuralsofMogaoCave112FanJinshi&.MeiLinTowofthescreenpaintingsonthewalsofthemainnicheofMogaoC...  相似文献   

7.
本大讨论了用动态图形方式演示求解Josephus问题的原理和方法,该方法对如何在教学中使用CAI技术提出了一个实例、本文同时给出了用C语言编制的Josephus问题求解过程的动态图形演示CAI软件。  相似文献   

8.
NomenclatureAArea(m2)DhHydraulicDiameter(m)EEnergyContent(J)fPressureLossCoeficientαVoidFractionHSpecificEnthalpy(J/kg)IInert...  相似文献   

9.
APreliminaryStudyofClasificationoftheEarlyCavesinZhangyeAreaJiYuanzhiInZhangyeareatherearefourgroupsoftheearlycaves.TheyareMa...  相似文献   

10.
NomenclatureLetVandZbetworealC∞manifolds,dim.V=n≥2,dim.Z=mandDJk(V,Z)isasystemofk0thorderpartialdiferentialequations.Jk(V,Z...  相似文献   

11.
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.  相似文献   

12.
风的曲线     
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.  相似文献   

13.
Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.  相似文献   

14.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

15.
一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/  相似文献   

16.
《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?  相似文献   

17.
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.  相似文献   

18.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

19.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.  相似文献   

20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号