圆体的

The 20S catalytic core of the 26S proteasome has the shape of a barrel made of four rings which are composed of seven differentαsubunitsα_1-α_7 at two outer rings and seven differentβsubunitsβ_1-β_7 at two inner rings at which the catalytic sites locate. Three of theβsubunits contain proteolyses sites, which are sequestered in the hollow interior of the 20S particle. Substrates enter the 20S through a narrow channel formed by theβsubunits, whose N-termini, depending on their conformation, can either obstruct or allow substrate entry and thus function as a gate. This entry channel is narrow and only permits passage of unfolded, linearized polypeptides.

哺乳动物26S蛋白酶体是由一个20S催化颗粒(catalytic particle，CP)和两个19S调节颗粒(regulatory particle，RP)组成的ATP(adenosine-triphosphate，ATP)依赖性蛋白水解酶复合体。20S CP是26S蛋白酶体的催化核心，它是由4个圆环堆叠形成的桶状复合物，其中两侧外环每个环是由α_1-α_7亚基组成，两个内环每个环是由β_1-β_7亚基组成，4个环的中央形成一个狭窄的内腔。2个β内环形成了20S CP的催化中心空腔，其内壁为催化活性位点所在地；外侧α环中心的孔道是底物到达催化中心空腔的通道，一般被α亚基上的N末端所封闭，阻止胞内非目的靶蛋白进入20S CP内被降解破坏。

Objective:To establish a reliable method for isolation and culture of murine adult oval cells.

目的：建立一种稳定的成体小鼠卵圆细胞的分离和培养方法。

She was so round and roly-poly that I used to wonder how she ever moved fast enough to catch a bird.

她身圆体胖，我过去总感到不解的是她何以能捉到一只小鸟。

Behold the great rondure ,the cohesion of all,how perfect!

看哪，这伟大的圆体，万物都在归于一源，何等完美！

Dolphins and whales often syncopate our swimming with a rhythm of in-breath and out-breath as a pod.

海豚和鲸鱼经常把我们的游泳切分到作为一个圆荚体的呼吸节奏。

Focal acantholytic dyskeratosis with corps rounds and grains were the usual histopathological findings.

局限性棘层松解性角化不良及其产生的圆体和谷粒是最常见的组织病理学改变。

Pump wear and tear maintenance: Pump body is absorbing the major section of wear surface arc-shaped face.

泵体的磨损维修：泵体内表面磨损主要是吸油区段圆弧形工作面。

Streamlined cigar-shaped jack; good game fish.

流线型的圆体鲹；好的猎用鱼。

Resolution and preparation of ethofumesate enantiomers were achieved under the optimal semi-preparation conditions. The chemical structure of two elutes were identified by GC-MS, the optical property and the eluting order were determined by using the Circular Dichroism detector and polarimeter.

在优化的半制备色谱条件下，完成了乙氧呋草黄对映体的拆分、收集和制备，两个组分的化学结构经GC-MS确证，光学性质和流出顺序用圆二色检测器和旋光仪进行测定，获得了光学纯度超过97%的左旋和右旋对映体。

The infectivity of TMV recovered by dialysis from incubation with anthraquinone glycosides in vitro has been reduced in contrast to infectivity of TMV control, it seems that anthraquinone glycosides have direct viricidal effect on TMV. The anthraquinone glycosides may interfere recognization of TMV to host receptor when applied before TMV inoculation. The anthraquinone glycosides can inhibit multiplication of TMV in infected leaf discs but did not inhibit infectivity of TMV-RNA in vitro. The control of tobacco mosaic virus disease of N.

总蒽醌甙对TMV混合，对粒体形态无破坏作用，但经透析，其抑制作用仍较高，表明总蒽醌甙与TMV结合能力强不易解离或对粒体具有直接毒害作用；总蒽醌甙预先接种可能影响病毒对侵染位点的识别，对叶圆片中的病毒具有抑制复制的作用，但在体外混合不影响TMV-RNA的侵染活性，可能与总蒽醌甙干扰病毒的衣壳装配过程或影响复制酶的活性有关。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷