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Life Cycle Assessment is a tool which quantitatively analyzes and qualitatively valuates the environmental impact of a product, process or activity throughout its entire life cycle.

生命周期评价（Life Cycle Assessment， LCA）是一种对产品、生产工艺以及活动的整个生命周期对环境的影响进行定量分析与定性评价的工具。

Based on the optimal simulation, a comparison of the normal lithium bromide triple-effect absorption cycle with series solution circuit and the same cycle with an additional vapor compression device has been carried out.

在循环优化计算的基础上，对基本型直燃式串联三效溴化锂吸收式制冷循环和带蒸汽压缩装置的三效制冷循环进行了对比分析。

The air raid drill for the signal: First three minutes of advance warning, Wong, 36 seconds, stopping 24 seconds for a repeated cycle times; Then three minutes of air raid sirens, lasting six seconds, stopping six seconds, repeated 15 times as a cycle; The final warning is lifted, or for Wong three minutes.

试鸣的防空警报信号为：首先是3分钟的预先警报，鸣36秒，停24秒，反复三遍为一个周期；然后是3分钟的空袭警报，鸣6秒，停6秒，反复十五遍为一个周期；最后是解除警报，即连续鸣3分钟。

This means the "audit cycle" and "certificate cycle" are different.

这意味着&审核周期&和&证书周期&是不同的。

This paper discusses such design problems in heating systems with the pres- sureless boiler as how the pumping head of the cycle pump is selected ,where the cycle pump is installed and whether the expansion tank is necessary.

针对无压锅炉供暖系统设计中有关循环水泵扬程的选择、循环水泵的设置高度及是否设置膨胀水箱等问题从理论和实践上进行了探讨，得出了可供设计人员实际应用的计算公式，介绍了几个关键问题的处理方法，澄清了一些模糊认识。

Basing on the statistic datum existed of bridge deck pavements, analyze the main failure modes and its main causes to damage on different styles of bridge, at the same time, through the big calculation software ,establish the space models to simulate the course of mechanics of bridge deck pavements, analyze the main factors which affect the bridge deck pavement"s mechanics and the relations between them; according to the atmospheric circulation circumstances of bridge deck pavements, take the statistic datum of using life of prefabricated T-beam、box girders and casting girder in region of HUA-NAN as examples to returning analysis ,establishing the life prediction model of this style bridges; associating "the Method of Estimating to Life Cycle Costing,bring forward this method to take a evaluation of economy on bridge deck pavements, insure the life cycle costing reasonable; giving some tactics on the design of bridge deck pavements.

以既有桥梁的桥面铺装层使用现状统计资料为基础，分析了各种类型桥面铺装层的主要破坏形式及其主要损伤原因，同时利用结构分析软件，对桥面铺装层建立空间模型模拟其受力作用过程，分析影响桥面铺装层受力大小的主要因素以及各因素与铺装层受力大小之间的关系；按照桥面铺装层所处环境的不同，以华南地区预制T、箱梁和现浇梁的桥面铺装层正常使用寿命统计数据为例，通过回归分析建立该类型桥面铺装层的正常使用寿命预测模型；利用寿命周期费用评价方法，对特定铺装层的设计方案某一参数的变化所带来的经济效益进行评价；给出桥面铺装层设计构造建议。

All of this may clarify the correlation between PLK family and cell cycle regulation, provide new potential targeting sites for the treatment of cell cycle-aberrant diseases such as cancer.

我们期望通过对这个新基因的深入研究，进一步明确PLK家族在细胞周期调控中所发挥的作用，并为细胞周期调控异常的疾病提供新的治疗靶点。

For each sterilisation cycle, records should be made of the time taken to complete the cycle, of the pressure, temperature and humidity within the chamber during the process and of the gas concentration and of the total amount of gas used.

每一个灭菌循环的记录包括完成灭菌循环的时间，在灭菌过程中灭菌器内部的压力，温度，湿度，以及气体的浓度和总的用量。

Experiment results show that it can produce cycle accurate result and direct the design of coarse-grained reconfigurable architecture effectively at an early stage of design cycle.

应用实例表明，在设计初期，该方法能得到周期精确的估计结果，有效地指导粗粒度可重构结构的设计。

Terry, flannel Series: spandex terry cloth, metallic terry cloth, yarn-dyed color terry cloth, terry cloth cycle; plain velvet, color flannel, yarn-dyed flannel cycle, such as single-sided.

毛圈、绒布系列：氨纶毛圈布、金银丝毛圈布、色织彩条毛圈布、大循环毛圈布；素色绒布、彩条绒布、色织大循环单面绒布等。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。