不过两个可以使用的气密室中有一个是空的。营救人员担心这四名矿工无法抵达另一个气密室。
But one of the two available Chambers is empty and rescue workers fear that the four miners were unable to reach the other chamber.
两座建筑的氧气密度都在大约21%，足够让工人进入建筑，这家公司如是说。
Oxygen densities in both buildings were about 21%, high enough for workers to enter the buildings, the firm said.
最初考虑的是气密性、热容量和高级隔热材料。
Primary considerations were airtightness, thermal mass and high levels of insulation.
海拔每上升1000米大气压力- - -也就是空气密度- - -会降低大概11%(虽然精确的公式比这要更复杂。)
Every 1000 metres increase in altitude reduces atmospheric pressure - and hence the density of the air - by about 11 per cent (though the precise formula is more complicated than this).
一俟加热，它再次收缩，形成一个气密而耐用的包装。
Once heat is applied, it shrinks again, creating an air-tight, durable wrapping.
解决这一问题的方法之一是利用风能来压缩空气，使空气进入气密的地下储气站。
One answer is to use the energy to compress air, which can be squirrelled away in hermetically sealed underground caverns.
引擎将高超音速飞机带向空气密度、阻力比较稀少的高度。
That engine would carry the hypersonic craft to an altitude where air density and resistance are less.
日冕的电离气体（又叫等离子体）不仅非常炙热，而且异常稀薄，其密度还不到组成太阳主体的氢气密度的十亿分之一。
As well as being very hot, the ionised gas of the corona (called plasma) has a superthin consistency. It is less than a billionth of the density of the hydrogen that makes up the main ball of the Sun.
然而，由于气密管的建造难度，他们更会建筑跨越山谷的桥梁，而不是从谷底虹吸湖水。
However, due to the difficulty they had in building air-tight pipes it was more effective for them to bridge across valleys than to try to siphon water up from the valley floors.
这样您就可以感受到它的气密性。
一件气密防护服哪怕有一个小孔，一间气密实验室的窗户哪怕开一条缝，你的朋友，亲人和地球上的一亿人都有可能丧命。
All it takes is a tiny hole in an air-tight suit or a window left ajar in a supposedly air-tight lab, and you can wave goodbye to your friends, family and 100 million others.
在约翰内斯堡，完全相同的射击既可能比球门飞得高也可能撞到人墙，因为更低的空气密度既降低了拖曳力也降低了旋转效应。
In Johannesburg, the exact same shot would either fly over the crossbar or hit the wall, as the lower air density reduces both drag and the effect of spin.
介绍了高炉煤气压缩机采用氮气密封的改造。
Reformation of nitrogen seal of blast furnace gas compressor is introduced.
飞机采用非气密舱和四台动力不足的涡轮螺旋桨发动机，使它仅仅适用于低-中空飞行。
The aircraft has an unpressurised cabin and four underpowered turboprop engines, making it only suitable for low- to medium-altitude flight.
大气密度和温度的变化加上尘埃负荷。但是要意识到地球的自转和轨道处于不断的修正中。
Change in atmospheric density and temperature plus dust loading. But be aware that the planet's spin and orbit are being modified.
因为他们受到的天气和水，确保您的景观灯光设计只使用天气密封户外使用而设计单位。
Because they are exposed to weather and water, make sure your landscape lighting designer USES only weather-sealed units designed for outdoor use.
但他表示，总有一天它会比制作气密性容器的其他方法成本更低。
But he says one day it may be cost less than other methods for making gas-leak resistant containers.
使建筑气密性是指从传统的技术做不同的事情。
Making the building air tight means doing things different from traditional techniques.
两侧都经过精密光亮磨光的刀片确保填料腔的气密性密封。闸板的密封面经过研磨，以提供最好的阀座密封性。
Precision ground blade on both sides for tighter packing chamber sealing. Sealing face of the gate is lapped to provide the best possible seat tightness.
用途：适用要求较高的微波器件，传感器，滤波器及航天，导弹上应用的元件气密性带压力保护的封焊。
Usage: suitable for air tight seal welding with pressure protection of microwave device, sensor, filter and components that used on spaceflight and guided missile that have high requirement.
柯曼门窗系统创造健康、舒适的居住环境，离不开优良的气密性和水密性。
Gas tightness and water tightness ensure Goldcommon door and window system to produce healthy and comfortable living conditions.
阀门的初始阀座气密性可以通过水利测试进行检验，这种测试对以后长期的气密性影响很小。
The initial seat tightness of valves which can be proven by hydro-testing has little effect on extended long-term tightness.
聚乙烯在内心层形式的封条，使整套液气密性，并提供一个保护性涂层对外部，以保持包装干燥。
Polyethylene in the innermost layer forms the seals that make the package liquid-tight and provides a protective coating on the exterior to keep the package dry.
螺旋槽干气密封试验分析了干气密封螺旋槽几何参数对开启力、功耗、泄漏率和气膜刚度的影响，并通过理论计算对试验数据给予了验证。
The influences of the spiral groove parameters on the opening force, power loss, leakage rate and stiffness of gas film were investigated by the experimental test.
塑封集成电路因其是非气密性封装，封装材料热膨胀系数的不同以及被粘接材料表面能低，是造成塑封电路离层或开裂的内部原因。
First of all, the internal reason for the delamination or cracking is the different CTE of the packaging materials and the low surface energy of the adhesions.
塑封集成电路因其是非气密性封装，封装材料热膨胀系数的不同以及被粘接材料表面能低，是造成塑封电路离层或开裂的内部原因。
First of all, the internal reason for the delamination or cracking is the different CTE of the packaging materials and the low surface energy of the adhesions.
应用推荐