查询词典 span blocks

Bob has been in the forefront of transportation operating practices and procedures, having had hands on experience with every phase of rail operations, intermodal, port operation on dock, near dock and drayage, train dispatching from non-signaled train order territory through computer assisted traffic control mainline· His 30 years of experience span the period from the rigidly regulated practices of the late 1960's encumbered with volumes of paperwork through the deregulated virtually paperless environment that gave rise to multi-modal deregulated shipping alternatives to create market demand and augment many manufacturing entity efforts through vastly improved efficiency procedures to dramatically reduce costs and improve service

吉农先生一直站在运输经营和程序业的前沿，并有各项铁路业务，联运，在港口经营码头及码头附近区域，对复式列车调度的全港电脑辅助交通控制等方面的工作经验。他30多年的工作，经历了由六十年代后期的大量传统办公方式到现在的无纸化办公，这都使其得以运用多种航运调节办法，创造市场需求，通过大幅度提高效率大大降低成本和提高服务。

Objective To study the effects of di-n-butyl phthalate on the fecundity and the life span in drosophila melanogaster.

目的 研究邻苯二甲酸二丁酯对果蝇生育力和寿命的毒性作用。

With the rapid development of the technology of computer and automation, the computer control system is widely used in the manufacture of Al electrolysis and the efficiency is improved and the life-span of the electrobath is increased.

随着计算机和自动化技术的发展，以计算机为核心的自动控制系统已经被广泛应用于铝电解生产过程的控制，提高了生产效率、延长了电解槽寿命。

With the rapid development of the technology of computer and automation, and the demand of the product locale, the computer control system is widely used in the manufacture of aluminum electrolytic and the efficiency is improved and the life-span of the aluminum electrolytic cell is increased.

随着计算机和自动化技术的发展，以及生产现场的需求，以计算机为核心的自动控制系统已经被广泛地应用于铝电解的生产过程控制，提高了铝电解的生产效率、延长了电解槽寿命。

In these three stages, the first stage, which lasts about 3~4 days, is shorter than the other two stages, but it influences the life-span of electrolyzer directly, and accordingly influnces the economic benefits of electrolytic aluminium factory.

在这三个阶段中，焙烧阶段时间最短，一般只有3～4天左右，但是焙烧的好坏直接影响到电解槽的寿命，进而影响到铝厂的经济效益。

As a matter of fact, the previous ways belong to resistance-heated method. Because of uneven heating and some other causes, these methods have a great harm to the life-span of electrolyzer.

这些方法从本质上来讲均属于电阻加热法，由于加热不均等原因，对铝电解槽的寿命都有致命的影响。

The main research contents and results are shown as follows:(1) In order to meet the actural need of this research project, the general ways to bake electrolyzer, which include Aluminium-liquor- baking method, coke-ash-baking method and graphite-powder-baking method, are introduced in details. Their shortcomings and effects on the life-span of electrolyzer are also analyzed.

全文的主要工作和成果总结如下：(1)根据实际科研项目的需要，对现有的预焙电解槽焙烧启动方法铝液焙烧法、焦粉焙烧法和石墨焙烧法进行分析，指出其缺点。

On the base of fatigue loading spectrum achievements, combining the characteristics of large-span grid structure with hanging cranes and the using-requirement on fatigue loading spectrum of grid structure with hanging cranes, this paper has firstly put forward the theoretic method for constructing fatigue loading spectrum of grid structure with hanging cranes, organized the relevantprogram--GJFLS. and elementally established the program loadingspectrum .

在继承疲劳载荷谱已有成果的基础上，本文结合网架设置悬挂吊车的特点以及网架疲劳载荷谱的使用要求，首次提出了网架疲劳载荷谱编制的理论方法，并编制了相应的程序，初步建立了网架程序载荷谱。

It is difficult to control the schedule of elevated railway project due to the tremendous investment and the big space-time span.

城市轨道交通高架工程具有投资高、时空跨度大、控制不易等特点。

By comparing with the numerical results of different ellipticity, the ellipticity span to reduce the unevenness is got. The feasibility of elliptical inner layer is also got.

通过对不同椭圆度下的数值模拟结果比较，指出了降低不均匀度的椭圆度取值范围，分析了采用椭圆形加强套的可行性。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"