variation pattern造句
例句與造句
- the role of introgression in shaping the genetic variation pattern of the species should be seen in the same light .
在形成種的遺傳變異型中，種質(zhì)滲入所引起的作用也應(yīng)當(dāng)用同樣的見地來看待。 - the discontinuous component of the genetic variation pattern of a species also contains the differences among subpopulations resulting from accidents of sampling genetic drift and others .
物種遺傳變異型不連續(xù)的成分也包含抽樣遺傳播遷和其他事故引起的亞種群之間的差別。 - study on the topographic variation pattern of vegetation distribution
四川臥自然保護(hù)區(qū)植被的地形分異格局研究 - study on the topographic variation pattern of vegetation distribution in wolong nature reserve, sichuan province
四川臥自然保護(hù)區(qū)植被的地形分異格局研究 - the radial variation patterns of wood density in 19 chinese fir provenances were studied by means of x-ray wood densitometry
以微密度分析對19個種源杉木的木材密度徑向變異模式進(jìn)行了研究。 - It's difficult to find variation pattern in a sentence. 用variation pattern造句挺難的
- however, the variation patterns of rdna in gymnosperms are little known because of the limited sequence data
但是在裸子植物中由于研究資料的匱乏，使我們對裸子植物rdna的變異模式了解甚少。 - there existed a certain degree of variation in the radial variation patterns of average ring density among provenances and among individual trees within provenances
不同種源間和種源內(nèi)株間，年輪平均密度的徑向變異曲線都存在一定的變異，但此變異主要表現(xiàn)在種源內(nèi)株間。 - till today there is no report on molecular evolution of 5s rdna in pinus . thus, the rdna variation pattern and organization in gymnosperm genomes are the primary focus of the present project
8s-26srdna位點(diǎn)數(shù)平均較被子植物多，5srdna除pinusradiata外，在其它種里則與被子植物相似。 - 5s rdna cloning and sequencing were carried out to analyze the 5s rdna variation pattern . genomic in situ hybridization ( gish ) was performed for better understanding of genomic relationship among closely relative pines
利用克隆測序方法對松屬植物5srdna的研究無疑是有開創(chuàng)性的工作，可以探討裸子植物的5srdna的進(jìn)化機(jī)制和種間關(guān)系。 - when the anisotropy is not taken into account, the obtained image almost has the same variation pattern with that when anisotropy is considered . but pn velocities are not well consistent with geology for the former than the later
如果不考慮pn波速度的各向異性變化，波速橫向變化的整體趨勢和考慮各向異性時接近，但pn波速度與地質(zhì)構(gòu)造吻合得沒有考慮各向異性時好。 - 1 . taxonomy variation patterns of all available characters in ephedra from china are studied both in the field and in herbarium . thirteen species are recognized from china, among which, ephedra rituensis y . yang, d . z . fu et g zhu is described new to science
1、分類學(xué)從性狀變異式樣的分析入手，結(jié)合標(biāo)本館工作和野外調(diào)查，確認(rèn)了中國麻黃屬植物共有13個種；合并了麗江麻黃(ephedralikiangensis)、雌雄麻黃(e - the main results are summarized as follow : 1 . gross morphology on the basis of field observation and examimation of herbarium specimens, the variation pattern of all the major gross-morphology characters in machilus from zhejiang was studied, and their taxonomic significance was evaluated . the results show that the most reliable characters for the delimitation of species are the features of the leaf, the tepal and the fruits . the secondly important characters are the length and position of the florescence
形態(tài)性狀分析分析結(jié)果表明：潤楠屬植物的分類性狀主要有小枝、葉片、花序、花被片、果實(shí)等特征特性，其中花被片、葉片、果實(shí)是潤楠屬的重要分類性狀；花序的長度及著生位置也是區(qū)分潤楠屬種間的重要標(biāo)志之一；小枝的毛被在分類上具有第三位的重要性。 - the results were following : ( l ) generally, all four indices showed the similar variation patterns in species diversity; ( 2 ) generally speaking, the order of species diversity indices changed with the pattern : shrub layer tree layer herb layers; ( 3 ) the species diversity of evergreen broadleaved forests was larger than that of warm conifer forests; ( 4 ) the species diversity of forests in meizi lake area has been affected by human factors
結(jié)果表明：(1)梅子湖森林植被樣地物種多樣性測度的結(jié)果，上述4種指標(biāo)總體上表現(xiàn)出相同的變化趨勢。門）總體看來，14個樣地的物種多樣性指數(shù)在群落不同層次的變化規(guī)律為：灌木層喬木層草本層。（3）不同植被類型的物種多樣性特征是：常綠闊葉林暖性針葉林。 - combined with the real example of monitoring pressure on the supporting system in the long span underground space of dk7 + 692 section at jiao-xin line of chongqing light railway, it is set forth the methods about choosing the support system and its parameter, digging methods of underground space, measuring and testing methods for the stress of the support system; the testing results and variation pattern were analyzed for the stress of the initial supporting i-steel axial stress of bolt, stress of shot-concrete, supporting pressure of temporary i-steel and stress of steel of the second lining, then, the reason for deformation of the support system induced by sharp increase of i-steel was determined
摘要結(jié)合重慶市輕軌較新線大坪車站大跨度地下空間dk7+692斷面施工支護(hù)體應(yīng)力監(jiān)測的工程實(shí)例，闡述了該大跨度地下空間支護(hù)結(jié)構(gòu)的參數(shù)選擇、地下空間的開挖方法、支護(hù)體結(jié)構(gòu)的應(yīng)力量測方法及測試手段；分析了支護(hù)體初期支護(hù)工字鋼拱應(yīng)力、錨桿軸力、噴射混凝土內(nèi)應(yīng)力、臨時工字鋼支撐應(yīng)力、二次襯砌鋼筋應(yīng)力等測試結(jié)果和變化規(guī)律；確定了工字鋼拱應(yīng)力急劇增大而可能引起支護(hù)體系失穩(wěn)的原因。 - characterization of stomatal frequency, stomatal index and guard cell length stomatal characteristics appear to be related to variations in net photosynthetic rate and water-use efficiency ( sellers et al, 1996 ) . here, the stomatal frequency, the guard-cell length and the stomatal index of non-leaf organs were investigated comparatively between the ear and the leaf of wheat . the results showed that stomatal frequency of non-leaf organs is significantly lower than that of leaves, whereas the guard-cell length and stomatal index showed different variation patterns in both leaves and non-leaf organs
另外，本文還著重討論了非葉器官氣孔頻度對作物光合作用的影響，并提出了在非葉器官中可能存在與此相適應(yīng)的未知的光合類型葉綠體是作物進(jìn)行光合作用的場所，通過對小麥、水稻非葉器官及功能葉葉綠體超微結(jié)構(gòu)的比較研究，發(fā)現(xiàn)非葉器官單個光合細(xì)胞中葉綠體的數(shù)量較少，體積也較小。
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