不存在的
- 与 不存在的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Based on the petrological and geochronological study of metamorphic complexes from the Grove Mountains, the following conclusions are reached.(1)Exsolution texture is widely found in clinopyroxene in mafic granulites. A peak metamorphic temperature of 850 C was obtained from the reintegrated compositions of exsolved clinopyroxene. The preservation of augite megacrysts suggests a single episode of high-grade metamorphism for the Grove Mountains.(2)The compositional comparison of garnet from pegmatites with that from country rocks demonstrates that garnet in pegmatites is of xenocryst origin, and late amphibolite facies metamorphism does not occur in this area.(3)The Pan-African charnockite and post-tectonic sheet-like granite were first recognized in East Antarctica. Their occurrences suggest a collisional orogeny during the Pan-African time.(4)The SHRIMP U-Pb zircon dating on various rock types indicates that the major metamorphism in the Grove Mountains occurs at c. 550 Ma, and the tectonothermal evolution terminated at c. 500 Ma. The Grenvillian granulite facies metamorphism did not develop in the studied area.(5)The Prydz belt, the second Pan-African suture within the Gondwana suppercontinent, was further comfirmed based on this study. The Gondwana suppercontinent was not formed by the simply juxtaposition of East and West Gondwana, but by the collision of several blocks during the Pan-African time.
本项目通过格罗夫山地区高级变质杂岩的变质岩石学和同位素年代学研究,获得如下重要认识:(1)发现辉石出溶结构,由此获得峰期变质温度为850 C,并根据火成普通辉石的识别确定该区只存在单相麻粒岩相变质;(2)通过伟晶岩中石榴石斑晶与围岩中石榴石的对比研究提出了石榴石的捕虏晶成因,进而确定该区不存在晚期角闪岩相变质作用;(3)在东南极首次识别出泛非期紫苏花岗岩和后构造层状花岗岩,为泛非构造热事件的碰撞造山成因提供了重要佐证;(4)对不同岩石类型的锆石SHRIMP定年精确地限定了格罗夫山地区主期变质作用发生于泛非期,~550 Ma,热事件结束于~500 Ma,年代学数据没有揭示在该区存在格林威尔期麻粒岩相变质作用的迹象;(5)进一步确认了东南极内部普里兹带的存在,它属于冈瓦纳超大陆内部的第二条泛非期缝合带,据此认为冈瓦纳超大陆并不是由东、西冈瓦纳陆块的简单拼合而成,而是多个不同块体拼合的结果。
-
The evolution process with the change of a non-dimensional variable about the cantilever, Arc shaped beam and S shaped beam is investigated in this paper.
(1)文中:Arc型梁和S型梁已不再是悬臂梁;S型梁的悬空长度随着梁的均布载荷的大小而变,不存在临界悬空长度;Arc型梁不存在临界长度。
-
The transverse wave disturbance along tangential base flow of circular vortex is discussed By using numerical method we study this instability of baroclinic flow which is mesoscale inertia wave instability on the cylindrical coordinate The influence of stratification stability N 2 , Coriolis parameter f 0 , the vertical shear of tangential wind z of the ambinent atmosphere and the latent heat on the growth rate of instability is studied From the above analysis and calculation, we can learn that there are Eady mode and mesoscale mode of transverse wave instability in circular vortex as well Furthermore we also learn that distribution character of mesoscale mode disturbance field of transverse wave instability, anomalistic "cats eye" structure of lower level and the character of the slowly spreading disturbance converges at low level and the quickly spreading disturbance converges at high level
作者中文名:李红金;陆汉城;宋晓亮;李鲲摘要:讨论涡旋大气中,存在沿切向基流传播的横波型扰动,并采用数值方法讨论了柱坐标系下圆形涡旋系统斜压气流中这类扰动的不稳定,这是一类中尺度的重力惯性波的不稳定。研究了涡旋环境大气的层结稳定度参数N2、切向风垂直切变Vz、凝结潜热、涡旋特性及科里奥利参数f0对不稳定增长率的影响。圆形涡旋中同样存在横波不稳定的Eady模态和中尺度模态,得到了中尺度模态的扰动场分布特征:流场的不规则"猫眼"结构及慢速传播的扰动均集中在低层,而快速传播的扰动均集中在高层的扰动特征。
-
When the parameters of complex system are variable by time, it is more difficult to design the control system.
时滞特性是工业生产过程中普遍存在的现象,由于时滞现象的存在,扰动不能被及时察觉,控制作用需长时间后才能反映到系统输出上,因此使控制器参数不易选取,若控制参数调整不当,会造成系统控制品质的下降,严重时会导致系统不稳定。
-
However, unlike most industrial particles there are no exposure limits, such as Permissible Exposure Limit or Threshold Limit Value, established for biological agents such as swine influenza virus.
然而,和绝大多数工业环境中存在的颗粒状污染物不同的是,微生物,如甲型(H1N1)流感病毒没有暴露限值,如职业接触限值,因此,虽然佩戴呼吸防护口罩能够帮助降低暴露水平,却无法保证使用者绝对不接触甲型(H1N1)流感病毒,不排除存在暴露的可能,不排除受感染、生病甚至死亡的可能。
-
However,unlike most industrial particles there are no exposure limits, such as Permissible Exposure Limit or Threshold Limit Value, established for biological agents such as SARS. Therefore, respirators are not a guarantee that the user will not contract SARS. Respirators may help reduce exposures
然而,和绝大多数工业环境中存在的颗粒状污染物不同的是,SARS病毒并没有暴露限值,因此,佩戴防护口罩虽然能够帮助降低其暴露水平,却无法保证使用者绝对不接触SARS病毒,即不排除存在暴露的可能,不排除受感染、生病甚至死亡的可能。
-
Besides, the researchers also indicate that under different market structure, the property and degree of scale economy is different.
本研究结合市场经济与规模经济从理论及实证两个方面进行分析,其研究结果显示,在完全竞争的市场结构中,规模经济是不确定的,而在不完全竞争的市场结构中,不仅存在规模经济,而且企业存在最小最佳规模,达不到有效规模的企业在竞争中处於不利地位。
-
Man's original being,as understanding of being,can not be defined throughbeing exemplified by something,id est,can not be presupposed as a certainsubject.
人的本源存在,作为对存在的领悟,不能通过引举这种或那种事项来对之加以规定,也即,不能预设其为某种主体。
-
So, are we to gather that in Bhagavad-gita, Krsna has compared Himself to a creature that does not exist, and if so, are we then to conclude that Krsna Himself does not exist?
那么,在《博伽梵歌》中搜集到的这一点——Krsna将自己比喻成的这种生物,我们认为它不存在么?如果是这样,那么我们就可以得出结论Krsna他本人也不存在呢?
-
The Dayan answered," There's no dry cake without crumbs and there's no problem without a solution."
智者回答:&不存在没有饼屑的干饼,因而不存在没有办法解决的问题。&
- 推荐网络例句
-
The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
-
To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
-
After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。