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In combination with the geological features of the ga wells in West Sichuan, such as multi-payzone high pressure gradients and a large lithological change in channel sand bodies, etc., the casing cementing and perforation completion were adopted for the main well and branch holes in the well group and the interzonal pressure seals of the main well and branch holes, and the separate well fracturing and producing were all realized through a completion string with dual-tubing and dual-packer.

结合川西地区气井多产层、高压力梯度、河道砂体岩性变化大等地质特点,该井组主井眼和分支井眼均采用套管固井、射孔完成,通过双油管和双封隔器的完井管柱实现了主井眼和分支井眼的层间压力分隔和分井压裂、分井采气。

It is proved that if the RungeKutta method and the linear multistep method are of order p, then the numerical Hopf bifurcation value is an approximation to the Hopf bifurcation value of the equation itself of the same order p.

证明了如果Runge-Kutta方法和线性多步法是p阶的,那么数值Hopf分支值以相同的阶数p逼近于方程本身的Hopf分支值。

Several branch holes, which are mutually independent, can be reenterable and have pressure seal effects, may be drilled through a main well and their completion operations can he carried out by applying branch hole techniques.

分支井技术可以从一个主井眼中钻成多个相互独立的、可以再次进入的、具有压力封隔效果的分支井,并能进行完井作业。

Phusis {foo'-sis} from 5453; TDNT - 9:251,1283; n f AV - nature 10, natural + 2596 2, kind 1, mankind + 442 1; 14 1 nature 1a the nature of things, the force, laws, order of nature 1a as opposed to what is monstrous, abnormal, perverse 1b as opposed what has been produced by the art of man: the natural branches, i.e. branches by the operation of nature 1b birth, physical origin 1c a mode of feeling and acting which by long habit has become nature 1d the sum of innate properties and powers by which one person differs from others, distinctive native peculiarities, natural characteristics: the natural strength, ferocity, and intractability of beasts

相关经文回前一页 5449 phusis {foo'-sis}源自 5453; TDNT - 9:251,1283;阴性名词 AV - nature 10, natural + 2596 2, kind 1, mankind + 442 1; 14 1 大自然 1a 自然之事物,自然力,自然律,自然次序 1a 相反於怪异的,不正常的,邪恶的 1b 相反於人类艺术之产物:自然分支,亦即自然运行而得的分支 1b 天生,实体原型 1c 长期习惯形成的天性而得感受及行为之样式 1d 与他人不同天生的特质及能力之总体,有别於人的天赋与众不同,天然的特质:天然力量,多产,和难驾驭的兽性

These arise anterolaterally from the aorta almost immediately as it exits the aortic hiatus and extend over and supply the inferior surface of the diaphragm.

,主动脉几乎是一从主动脉裂孔出来,这两条动脉就从它的前外侧分支,向上行,为横隔膜下表面提供血液,它们还分别分支为多条身体同一侧的肾上腺上支动脉。

Methods 4 adult male cadaveric (8 sides) were dissected to study the position of the auriculotemporal nerve and masseteric nerve ...

结果所有耳颞神经干均有部分与关节囊或髁状颈部骨质直接接触,最长有14.6mm,最短为5.6mm;在关节囊内侧分支最多,平均为3.5支,而在关节囊前壁没有分支。

One of the synthetic methods of the MAP is to connect subsequent amino acid one by one with the lysine belonging to the lysine-tree scaffolding. Because of the steric hinderance effect, synthesis becomes more and more difficult. And for so many crippled peptides in the MAP, the reactivity of it is not so good.

将支架结构上的氨基酸作为合成的结合位点,按照常规方法依次进行后续氨基酸的连接,由于空间位阻效应,后续氨基酸的连接困难度增加,八分支肽中的残缺肽较多,由此方法合成的分支肽反应活性较低。

Recent results indicate that (1) Oryzeae is monophyletic and falls into two main clades corresponding to the traditionally recognized subtribes;(2) Close affinities of the monoecious genera are not supported, suggesting the multiple origins of unisexual florets;(3) Previous recognition of three monotypic genera (Hydrochloa, Porteresia and Prosphytochloa) is not justified;(4) Based on dating using molecular clock approach, it is estimated that Oryza and Leersia branched off from the remaining genera of Oryzeae -20 million years ago, and separated from each other -14 MYA.

目前已有的研究结果表明:稻族是单系类群,可分为两个主要分支,相当于传统的两个亚族(Zizaniinae和Oryzinae),但稻族单性花小穗是多次起源的,不宜作为划分亚族的依据;一些单型属(Hydrochloa、Porteresia和Prosphytochloa)的建立得不到分子证据的支持;根据分子钟原理估计稻族两个主要分支的分歧时间在大约2000万年前,而稻属和近缘属假稻属Leersia的分歧时间为1400万年:稻属内主要类群的分歧时间在900万年前左右。

Cymes pedunculate, terminal or axillary, each branch ends in as many inflorescences and/or branches as leaves in a whorl.

有花序梗的聚伞花序,顶生或腋生,每个分支结果是和叶子在一轮一样多开花和/或分支。

Step 4: Draw pictures for each branch or for as many branches as possible.

为每一个分支或者为尽可能多的分支画一些图片。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。