because of the special location and the large-span structure of the freeway toll station, the spacial steel structure is more widely used.

recently, with the demand of production and life of people, lots of large-span structure building arise in cities.

近年来，随着人民生产、生活的需要，大量大跨度房屋不断兴建。

the design and implementation of simulation experiment software system of kinematic diagram of mechanism

机构运动简图测绘虚拟试验系统的设计与实现

dad asked me to buy a round file for him.

翻译爸爸让我去给他买一把圆锉。

he wants someday to be able to rifle through mail as quickly as his wife and "round file" the piles of junk mail that comes across his desk.

他希望有一天能够像妻子一样，快速浏览邮件，“独自处理”办公桌上成堆的垃圾邮件。

the problems and cautions on how to prevent the numeral meteorological sounding meter from suddenly losing in thunderstorm weather

雷雨天气预防数字探空仪突失应注意的问题

the correct use of the meteorological sounding height replacing the slant range

如何正确使用探空高度代替斜距的方法

the new modern meteorological sounding techniques

现代气象探测新技术

experimental inter-american meteorological sounding rocket research network

泛美实验气象探测火箭研究网

the study on alkalescence refractory material of isostatic press moulding liner used in induction smelting furnace

感应炉等静压成型碱性炉衬耐火材料的研究

the element geochemical features of ancient oceanic sedimentary environments in the silurian period in the tarim basin

塔里木盆地志留系古海洋沉积环境的元素地球化学特征

in the ordovician, silurian period, the devonian, carboniferous, the advent of low amphibians and ancient ancient reptiles.

在奥陶纪、志留纪、泥盆纪、石炭纪，相继出现低等鱼类、古两栖类和古爬行类动物。

but as the ecosystem recovered after the freeze, it expanded, with land plants becoming common over the course of the silurian period.

但在冰封之后，随着生态系统的复原，其范围也随之扩大，其结果是在Silurian期陆生植物变得更为普遍。

state-vector equation with damping and vibration analysis of laminates

考虑阻尼的状态向量方程和层合板的振动分析

modified h-r mixed variational principle for magnetoelectroelastic bodies and state-vector equation

磁电弹性体修正后的H-R混合变分原理和状态向量方程

general variation principle behind piezoelectric shell and state vector equation

压电材料壳的广义变分原理和状态向量方程

repairing finger avulsion injury with remaining nail matrix

保留甲床的指脱套伤修复

development and application of control facility of warm-water discharge in river model test

河工模型温排水试验测控设备的研制与应用

greenhouse or growth chamber evaluation of nematicides against root-knot nematode

杀线虫剂杀线虫效力的温室或培育室评定准则

he and his colleagues have created the south pole food growth chamber, which has been in operation since 2004.

他和他的同事们创造了“南极食品生长箱”，自2004年以来一直在使用。

after 10repetitions of the procedure over 30-40 days, the cuvette with ripe harvest arrived to the exit of the plant growth chamber.

在10以后做法的重复30-40天，小试管以成熟收获到达了对植物生长分庭的出口。