Asphalt shingles, also known as composition shingles, are so widely used because of their moderate cost, light weight ( compared to many other roofing products), durability, and ease of installation.

They also feature superior non-skid surfaces, and the light weight and resiliency of the board tip minimise injuries, especially to the head.

另外，这种跳板有较好的防滑表面，而且它们较轻的重量和弹性能将损伤，尤其是对头部的伤害减到最小。

No decision is made in a vacuum.

没有哪个决定是总经理一手遮天。

Clearly, management doesn't operate in a vacuum.

很清楚，管理并不是在真空里进行的。

Better than the life of solid-state devices in a vacuum device.

固态器件的使用寿命要好于真空器件。

Without a network, computers operate in a vacuum.

网络没有架设妥当的话，电脑无用武之处。

Battery used to maintain the grid potential in a vacuum tube.

能够保持潜藏在真空管内的栅格的电池。

However, IT does not exist in a vacuum.

但是，IT并不存在于真空中。

The author claims that no one can live in a vacuum.

本文作者认为，没有人可以生存在真空之中。

Control setup of the water circulation in a vacuum unit

真空机组循环水控制装置

However, in a vacuum, such analysis provides little strategic direction.

然而，在很长的一段时间内，这样的分析未能为企业提供战略方向。

You don't use language in a vacuum.

一个人在与世隔绝的情况下不使用语言。

E has lived in a vacuum for eighteen years, cloyed by the representative and unique longings of any youth.

他离群独处生活了18年，腻味了年轻人那一套典型而独特的向往和追求。

No one exists in a vacuum.

没有一个人是生活在真空中的。

Moral values cannot be taught in a vacuum

道德价值观的教育不能脱离实际。

This kind of decision cannot ever be made in a vacuum.

这种决定绝不能脱离实际。

Theoretical Analysis of Heat Transfer of High Vacuum Multi-layers

应用逐层传热模型分析高真空多层绝热中的传热过程

Effect of inert gas on evaporation and condensation process at high vacuum

惰性气体对高真空蒸发与冷凝过程的影响

Provides some measures to maintain high vacuum.

给出了保持机组高真空度的一些措施。

Theoretical Analysis of Reduced Gravity of Polymer Films under High Vacuum Electrostatic Field

高真空静电减重力装置中聚合物薄膜减重程度的理论分析

Analysis on Factors Affecting Image Formation of High Vacuum Tungsten Filament SEM

影响高真空钨灯丝扫描电镜成像因素分析