查询词典 token-ring

The original 10 kV grid terminal user adopts emanant type,and the floor area of transformer centralized power supply and distribution mode is very large,high investment,low reliability and high energy consumption,which shows the significance and necessity for medium voltage grid to use ring network and transformer distributed power supply.

原有10kV电网终端用户采用放射式、变压器集中供配电方式占地面积大、投资高、可靠性低、不节能，指出中压电网采用环网、变压器分布式供电的重要性及必要性，比较了断路器和负荷开关-熔断器在保护终端用户变压器上的差异，对变压器的合理选用做了分析，以求做到节能和环保。

It is of great significance to carryout the study on EME of three-ring gear drive to increase the bearing capacity,minimize the volume and reduce the cost.

因此，进行三环传动弹性啮合效应的研究，对提高三环减速器的承载能力，缩小齿轮和整机尺寸，降低制造成本具有重要意义。

The company is located in the west wing of the Empark Grand Hotel just inside the northwestern part of the fourth ring road in Beijing Haidian district.

公司地址在海淀区西北四环内世纪金源大饭店西区。

Endeared her to the old lady, who gave her a ruby ring as a birthday present.

那老夫人喜爱小姑娘的无私，就送给她红宝石戒指作为生日礼物。

Products of conception are removed from the endocervical canal and uterus with a ring forceps.

用圆钳清除宫颈管和子宫内的妊娠物。

Products of conception are removed from the endocervical canaland uterus with a ring forceps.

用圆钳清除宫颈管和子宫内的妊娠物。

Next, seven of those trimmed molecules combine to form a ring-shaped structure, or heptamer, that captures the two factors and is transported to an internal membrane-bound compartment called an endosome.

之后，七个剪裁过的保护抗原分子会聚集起来，形成一个环状构造，称为「七聚体」，藉此抓住另外两种因子，再一起送入细胞内一个称为「内小体」的膜状构造。

The first part reports some new reactions of BNAH, especially the reductive cyclizations of some activated ethylenic compounds to five-membered carbocycles and a sevenmembered enolic ether ring, both of which may be useful in related areas.

详细论文的研究对象是重要的辅酶NADH的化学模型1-苄基-1，4-二氢烟酰胺。论文包括一个对近期该领域进展的综述和三部分工作。

Other methyl nucleophiles includingMeMgBr, MeCeCl2, MeTiCl3, Me3Al, Me3ZnMgCl, MeMnClwere tried, but in all these cases no detectable amount of exo-C8-methylated product was obtained. Although protecting C3-carbonyl as 1,3-dioxolanes could be achieved, the serious enolization of C8-carbonyl was still problematic. Converting C9-furan ring to α,β-butenolide did depress the enolization, but desired C8-methylation was completely replaced by migration of the double bond of the butenolide.

在本论文的早期阶段，主要着眼于解决二环[3.2.1]-C8-羰基加成甲基所遇到的C9-呋喃环差向异构化和C3与C8两个羰基之间化学选择性的问题：通过引入不同金属降低甲基试剂的碱性并没有取得甲基化的成功；通过不同的方法将C3-羰基掩蔽，但是C8-羰基的烯醇化依然无法抑制；虽然通过将呋喃环转化为α，β-不饱和-γ-丁内酯可以抑制烯醇化，但内酯环上的双键迁移又成了新的竞争反应。

In this paper,one superior Aspergillus niger, which could secrete saccharifying enzym with high activity,was selected from Hexi savory vinegar material by useing the transparents ring as elementary index and saccharifying enzymic activity as secondly index.

采用透明圈法进行初筛，以糖化酶活力为复选指标，从接霉制曲后的河溪香醋原料醅中筛选到1株产糖化酶活力高的优势黑曲霉。

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。