在《清洁空气法案》强制要求美国使用无铅气体的二十年里，铅在世界范围内的累积量显著下降。
In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.
谬论八：无碳房屋是对付建筑物温室气体排放的最佳选择。
Myth 8: zero carbon homes are the best way of dealing with greenhouse gas emissions from buildings.
氡是一种自然产生的放射性惰性气体，它无色、无味、无臭。
Radon is a chemically inert, naturally occurring radioactive gas without odour, colour or taste.
氡是一种天然产生的放射性惰性气体，它无色、无味、无臭。
Radon is a chemically inert, naturally occurring radioactive gas. It has no smell, colour or taste.
当碳与氧结合形成一种无色、无味、无嗅的气体叫做二氧化碳，它比空气重，可以灭火。
When carbon unites with oxygen, it forms a colorless, odorless, and tasteless gas called carbon dioxide, which is heavier than air and will extinguish a flame.
汽车排放的尾气严重污染了达卡的空气，随着无铅汽油的出现略改善了空气的质量，但是有毒的一氧化碳气体依旧存在着。
Dacca's air is burdened by vehicleemissions; air quality improved after the advent of unleaded gasoline, but toxins such as carbon monoxide persist.
在此过程中，这些“生物质”——曾经农业典型的废弃物——在无氧环境中加热，直到其放出可燃气体，而得到的残渣则吸收了燃料中约50%的炭。
In this process, the "biomass" - typically waste products from farming - is heated in the absence of oxygen until it releases a flammable gas.
静音无油空压机为使用客户提供了无油、无水的洁净压缩气体。
Mute oil free compressor for using the customers with no oil, without the water clean compressed gas.
耐腐膜片压力表适用于测量有一定腐蚀性、粘度大、无结晶的液体和气体的压力。
Decay resistance patch-pressure gauges for measuring corrosive to a certain extent, viscosity, no crystallization of liquids and gases pressure.
仪器应该安放在干燥、清洁、防尘、无腐蚀气体、无强电磁场干扰的环境中。
The device should be placed in the environment with dry, clean, dust-proof, no corrosive gas, no strong electromagnetic interference.
高电压无电极强脉冲气体放电，可以用作激光器的激发光源。
High voltage pulsed electrodeless discharge in rare gases can be used as a light source for laser excitation.
周围无强烈震动，无腐蚀气体和易燃易爆的气体存在。
Without strong vibration around, no corrosion inflammable and explosive gas and the gas exist.
通过对实际故障变压器油中溶解气体的分析研究，提出了用“无编码比值法”分析和判断变压器故障性质的诊断方法。
Through the analysis and research for the dissolved gas in transformer oil, the "non-code ratio method" is given to analyse and judge transformer fault.
一般压力表适用于测量无爆炸危险，不结晶，不凝固及对钢及铜合金不起腐蚀作用的液体，蒸汽和气体等介质的压力。
Normal Pressure Gauge is applicable for measuring the pressure of liquid, steam and gas without possibility like explsion, crystal, solidification and erosion on steel or alloy cooper.
本文采用全位势方程，在超音速区采用虚拟气体假设，给出了跨音速无激波翼型设计的一种方法。
In this paper, a method for the transonic shock-free airfoil design, based on the full potential equation, using "fictitious gas" assumption, is presented.
使用金硅势垒探测器及热电式致冷器构成传感器，并利用无模型控制器进行控制，实现气体露点的在线检测。
The sensor is composed of pyroelectric refrigerator and semiconductor detector, and controlled by a operator without model, In this way the air dew-point can be measured on line.
电接点压力表适用于测量对铜及铜合金无腐蚀、无爆炸危险、非结晶的各种液体、气体等介质的压力。
USE: Electric- contact pressure gauges are used for measuring positive and negative pressure of liquids and gases which are nor corrosive to copper and copper alloy and not explosive and crystal.
无严重影响触头盒绝缘的气体、蒸汽、灰尘及其它爆炸性和腐蚀介质的场所。
NO gas , wapor or dust that may severely affect the insulation of contact box, no explosive or corrosive substance.
同时通过对气体压缩因子、黏度随压力、温度的变化，建立了这些参数和无因次压力的关系；
And based on the relations of compressibility factor and viscosity of the gas versus pressure, the relations of these parameters versus dimensionless pressure are also built.
在连续大电流区间获得稳定的熔滴过渡形式才是采用无氦混合气体保护实现高熔敷率MAG焊工艺的核心问题。
It is the key to realizing high deposition rates MAG process with non-helium in shielding-gas mixture to acquire stable metal transfer mode in the region of high continuous current.
氢气的分子式为H2，它是一种无色、无溴和无味的气体。
Hydrogen is referred to as H2. It is a colourless, odourless and tasteless gas.
无色、无臭、无味的气体，占地球大气的78%，也是所有生物体的组成部分。
A colourless, odourless, tasteless gas, it makes up 78% of Earth's atmosphere and is a constituent of all living matter.
YP膜片压力表适用于测量对铜和铜合金无腐蚀、无结晶、高粘度的液体或气体的压力。
YP patch-pressure gauges for measuring the copper and copper alloy non-corrosive, non-crystalline, high-viscosity of liquid or gas pressure.
三氟化氮(NF 3)是有毒、无色、无嗅、不可燃的氧化性压缩气体。
Nitrogen trifluoride (NF3) is a toxic, colorless, odorless, nonflammable, oxidizing compressed gas.
铁的残余氯的气体浓缩和无氯四氯化钛可从剩余的气体回收。
The residual gaseous iron chlorides are condensed and chlorine-free titanium tetrachloride may be recovered from the remaining gases.
绝对压力，相对于真空(无压力)测得的液体或气体的压力。
ABSOLUTE Pressure, Pressure of a liquid or gas measured relative to a vacuum.
由于臭氧为弥漫的气体，消毒灭菌净化无死角。
Because ozone diffuse gas sterilization purification Hassle.
从目前的研究中，它被发现，单晶铜线材可以键合金垫和铝焊盘上由无气体保护的热超声球焊和楔焊。
From the present study, it is found that single crystal copper wires can be bonded on the gold pad and the aluminum pad by thermosonic ball bonding and wedge bonding without gas protection.
从目前的研究中，它被发现，单晶铜线材可以键合金垫和铝焊盘上由无气体保护的热超声球焊和楔焊。
From the present study, it is found that single crystal copper wires can be bonded on the gold pad and the aluminum pad by thermosonic ball bonding and wedge bonding without gas protection.
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