等比

Objective To determine the ED50 and ED95 of intrathecal isobaric bupivacaine for cesarean delivery.

目的测定等比重布比卡因用于剖宫产术蛛网膜下腔阻滞麻醉的ED50及ED95。

Objectives The study was designed to determine clinical efficacy and safety of isobaric bupivacaine for combined spinal-epidural anesthesia during rectocancertomy.

目的 研究应用布比卡因等比重液腰麻-硬膜外联合阻滞用于直肠癌根治手术的安全性和有效性。

Effects of reaction temperature, volume ratio of water to isobutylene and linear flowrate of C4 raffinate on activity of the catalyst were studied.

考察了反应温度、水油体积比和抽余C4烃的流速等对异丁烯转化率的影响。

The processing route, technology and characteristics of the MTBE unit in Harbin Refinery are presented. The main operation factors, such as catalyst packing and performance, reaction temperature and pressure, and the effects of alcohol/alkene ratio on isobutylene conversion and MTBE quality, are discussed. The problems occurred during production and their solutions are also summarized.

介绍了哈尔滨炼油厂MTBE装置的工艺路线、新技术的应用及特点；催化剂的装填及应用情况；总结了生产过程中遇到的一系列问题及解决办法；探索了平稳生产的新徐径，以保证装置安全、平稳、长周期运行；同时对反应器操作温度、催化蒸馏塔操作压力、原料中醇烯比等因素对异丁烯转化率及MTBE产品的影响做了简单的总结。

The correlative coefficients of linear regression function for isochronous stress-strain curve are all higher than 0.92, and the ratio of long-term strength to instantaneous strength reaches 94.39%, which indicate that the whole creep of fine sandstone specimen is weak.

应力－应变等时曲线线性回归函数的相关系数均高于0.92，长期强度与瞬时强度之比达94.39%，证明细砂岩试样的整体蠕变特性不强。

However, isotonic memory foam mattresses are denser than ordinary mattresses that provide you more and more comfort.

然而，等渗记忆泡沫床垫的密度比普通床垫，提供您更多的舒适性。

Compared to cross-sectional imaging, it has a lot of advantages, such as the rate of obtaining projections, X-ray utilization ratio and the isotropy of the spatial resolution and density resolution in 3D object.

它在获取投影数据的速度、X射线的利用率及重建出的三维物体的空间和密度分辨率各向同性等方面，比断层成象有着极大的优越性。

The decomposition of ammonium jarosite bearing indium in NaOH medium were studied. The effects of NaOH addition, liquid-solid ratio, decomposition temperature and time on the decomposition ratio of ammonium jarosite were investigated, respectively, and the behavior of impurity elements, such as Zn, In, Cu, Cd, Pb, As, Sb, Sn and Ag in jarosite residues was also discussed.

摘 要：提出NaOH分解含铟铁矾渣新工艺，考察NaOH用量、液固比、温度和时间对铁矾渣分解率的影响，并讨论铁矾渣中杂质金属，如Zn、In、Cu、Cd、Pb、As、Sb、Sn和Ag等在NaOH分解过程中的行为。

The results show that the decomposition rate of ammonium jarosite can reach 98.03% under the following optimum conditions, which are m m=0.381 41, temperature 60 ℃, liquid-solid ratio 21, reaction time 2 h. During the alkaline decomposition, the impurity elements, such as Zn, In, Cu, Cd, Pb, Sb, Sn and Ag are left in the residue, while As is leached into the pregnant solution as AsO43 with leaching rate of 83.36%.

结果表明：在 m m=0.381 41、温度60 ℃、液固比21、反应时间2 h的最优条件下，铁矾渣的分解率达到98.03%，而原料中的杂质金属，如Sn、Sb、Zn、In、Cu、Cd、Pb和Ag等绝大部分留在分解渣中，As则以AsO43的形态大部分进入溶液，浸出率达到83.36%。

This thesis, in the introduction, i t shows a contradictory mood and a sense of failure about the life of the Jazz Age Fitzgerald perceived.

本论文从人物分析着手，从社会、历史、以及作者自身的经历和世界观等多方面探讨导致主人公盖茨比梦毁人亡的根源所在。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。