Box section beams, possessing strong bending rigidity and resisting torsion, have been applied widespread in the construction of large-span bridges.

Box shaped module open on two sides

两侧被打开的盒形组件

Use the correctly sized spanner ( preferably a ring, box or socket spanner) for nuts and bolts.

针对不同大小的螺母和螺丝钉使用正确尺寸的扳手，尤其是环状的、箱体或窝形的板手。

Design of the Die for Both-Ended Circular Wrenches The variable hexagonal box spanner is the synthesis of the manual screw spanner and the hexagonal box spanner.

双头套筒扳手模具设计可变六角套筒扳手则是对手动螺丝扳手和六角套筒扳手的综合。

The spanner is different, according to the structure may divide into two big kinds, namely manual screw spanner and box spanner.

扳手按照结构的不同主要可以分为两大类，即手动螺丝扳手和套筒扳手。

Mark Zumberge: Basically a seismometer is a box with a spring with a mass hanging inside, and as the ground shakes the mass goes up and down.

马克•藏伯格：地震仪的基本模型是一个箱体，箱内装置弹簧，弹簧上悬挂重物，地震来临时，重物在竖直方向上振动。

Study on punch mould of tape box's special spring cushion produce

磁带盒专用弹簧垫片冲压模的研制

An Applied Compute Method for Mutual Action of Box Frame and Spring Foundation

箱形框架与弹簧地基共同作用的实用计算

The bogie for this crane is of H type weldable bogie, the primary suspension of the bogie is of journal box helical spring and wedge snubbing system.

该机的转向架是一种H型焊接构架式转向架，转向架的主悬挂为轴箱螺旋弹簧，斜楔式减振器。

Out of the box, Spring Roo supports English, German, Spanish, Italian, Dutch, and Swedish.

Spring Roo开箱即用地支持英语、德语、西班牙语、意大利语、荷兰语和瑞典语。

I reached swiftly between the mattress and box spring to grab the knotted old sock that contained my secret cash hoard.

我飞快地伸出手，在床垫和盒子之间扒拉着，抓起了那只用来存放我的私房钱的打了结的旧袜子。

Box spring is the support and cushioning device whose reliability is an important factor to ensure the safety of railway traffic.

轴箱弹簧作为连接轮对和构架的支撑与缓冲装置，其可靠性是保证铁路运输安全的重要因素。

Improvement of Generator Electronics Brush Box Spring Place Forming Die

QD2853起动机电刷盒弹簧座成型模的改进

Feasibility to Improve Axle Box Spring Guidance on Bogie Type 202

202型转向架轴箱弹簧定位装置改进的可行性

hale and hearty It took me half an hour to hale the heavy box down the stairs.

我费了半个小时的工夫才把那只重箱子拖到楼下。

I don't know how we'll get this box up the stairs.

我们不知道怎样才能把箱子弄上楼梯。

Application of cell control box system for aluminium electrolytic process

槽控箱控制系统在铝电解中的应用

Construction Technique of Mixture Structure of Modular Box System and Frame

盒子&框架结构施工技术

Research and analysis of integrated interactive set top box system

交互式综合型机顶盒研究与分析

The hardware design of keep temperature control box system

恒温箱控制系统的硬件设计

Modal analyses based on FEM of open boxcar

基于FEM的新型运煤敞车的结构模态分析