element n. 1.要素;成分;(构成)部分;分子。 2.【化学】元素;【数学】元,素;【机械工程】单元;单体;【无线电】元件;【植物;植物学】原种。 3.【电学】电池;电极;电阻丝。 4.生存环境,活动范围;本行,本领。 5.〔pl.〕原理;初步;大纲。 6.〔pl.〕自然力;暴风雨。 7.【军事】小队,分队。 8.〔pl.〕【宗教】(圣餐用)面包和葡萄酒。 the four elements (古希腊哲学家认为组成世界的地、水、火、风)四元素。 discontented elements 不平分子。 daughter element 【物理学】子元素。 control element 控制元件。 the elements of grammer 语法基础。 in one's element 在自己(活动)天地内,如鱼得水。 out of one's element 在自己活动天地外,不得其所,格格不入。 strife [war] of the elements 暴风雨。
Acoustics - rating of sound insulation in buildings and of building elements - part 2 : impact sound insulation iso 717 - 2 : 1996 ; german version en iso 717 - 2 : 1996 声学.建筑物和建筑物构件隔音评级.第2部分:冲击声隔
Acoustics - measurement of sound insulation in buildings and of building elements using sound intensity - laboratory measurements at low frequencies 声学.利用声强度测量建筑物和建筑部件的隔音性能.低频率实验室测量
Acoustics - rating of sound insulation in buildings and of building elements - part 1 : airborne sound insulation iso 717 - 1 : 1996 ; german version en iso 717 - 1 : 1996 声学.建筑物和建筑物构件的隔音参数.第1部分:气载音
Acoustics - measurement of sound insulation in buildings and of building elements - part2 : determination , verification and application of precision data 声学建筑和建筑构件隔声测量第2部分:数据精密度的确定验证和应用
Acoustics - measurement of sound insulation in buildings and of building elements - part 6 : laboratory measurements of impact sound insulation of floors 声学建筑和建筑构件隔声测量第6部分:楼板撞击声隔声的实验室测量
Acoustics . measurement of sound insulation in buildings and of building elements . part 7 : field measurements of impact sound insulation of floors 声学.建筑物和建筑元件的隔音测量.第7部分:地板冲击声隔音的现场测量
Acoustics - measurement of sound insulation in buildings and of building elements - part4 : field measurements of airborne sound insulation between rooms 声学建筑和建筑构件隔声测量第4部分:房间之间空气声隔声的现场测量
Acoustics . measurement of sound insulation in buildings and of building elements . part 2 : determination , verification and application of precision data 声学.建筑物和建筑元件隔音测量.第2部分:精确数据的测定验证及应用
Acoustics . measurement of sound insulation in buildings and of building elements . part 6 : laboratory measurements of impact sound insulation of floors 声学.建筑物和建筑元件的隔音测量.第6部分:地板冲击声隔音的试验室测量
Coatings for fire protection of building elements - code of practice for the use of intumescent coating systems to metallic substrates for providing fire resistance 建筑构件的防火涂层.防火用金属衬底膨胀涂层使用实用规程