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- In this paper, a closed chamber technique for measuring the complex free field sensitivity and directivity patterns of line array is described. 本文提出了一种在密闭管中测量线阵的自由场复数灵敏度和指向性图的方法。
- Using closed chamber technique and gas chromatography, in-site measurements of N2O, CH4 and CO2 greenhouse gase fluxes from grassland ecosystem were systematically conducted. 利用静态箱法采样，配以气相色谱仪法分析对草地N_2O、CH_4和CO_2温室气体通量进行了较系统的现场测量，同时对箱体内外温度进行同步观测。
- Using closed chamber technique and gas chromatography, in-site measurements of N2O,CH4 and CO2 greenhouse gase fluxes from grassland ecosystem were systematically conducted. 利用静态箱法采样，配以气相色谱仪法分析对草地N2O、CH4和CO2温室气体通量进行了较系统的现场测量，同时对箱体内外温度进行同步观测。
- Release of the welding energy instantaneously raises the contact point between the thermocouple wire and the base metal to the melting tempera ture and a fusion weld is formed. 焊接能量的释放会把热电偶线和基部材料的接触点的温度升高至熔化温度，然后产生熔化焊接。
- In this article concerned is the use of DC potential method for monitoring crack growth in a sheet metal specimen in a closed chamber which was vacuumed or fulled with a particular gas. 本文介绍用直流电位法监测在密闭腔中薄片试样上裂纹扩展的方法。密闭腔可以抽真空或充以特定气氛。
- By using soil bores and closed chamber methods, field experiments were carried out in the semiarid area of dry land to study the effects of irrigation and rainfall on the N2O loses. 摘要利用土壤探头法和密闭气室法相结合，就黄土高原旱地土壤玉米生长期灌溉和降水对N2O气态损失的影响进行了研究；
- To fractionate the contribution of plant to N2O emission from soil-plant system,the N2O emissions from soybean,soil and soil-plant system were measured by closed chamber method under field condition. 为区分植物在土壤-植物系统N2O排放中的贡献,用封闭式箱法对田间栽培的大豆植株及土壤、大豆植株-土壤系统的N2O排放进行了测定,同时对影响N2O的排放的因素进行了分析。
- The appearence characteristics of the heterogenous mixture zone near the bottom of weld metal in the fusion welded joint are studied through metallographic observations of many fusion welded joints. 通过时大量熔化焊接头的金相观察，研究了熔化焊接头焊缝底部附近“不均匀混合区”的形貌特征。
- BS EN 1418-1998 Welding personnel - Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials ... PDF版 ... 1998焊接操作者.完全机械化和金属材料自动焊接的熔焊和阻焊焊接操作者的验收试验(...
- The heat of fusion welding is generated in several ways,depending on the sort of metal which is being welded and on its shape. 熔焊的热度有几种来源，取决于被焊金属的种类及其形状。（注重的是翻译出语言的简练）
- A new view of characteristic zone of fusion welding joint is put forward through observations and researches of many fusion welding joints. 通过大量的熔化焊接头试样的观察和研究，提出了熔化焊接头特征区域划分新方案。
- The process characteristic and the application of its MAG fusion welding and resistance spot welding were described theoretically. 从理论上阐述了不锈钢MAG熔焊及电阻点焊的工艺特点及应用；
- The effect of Li_2O and the total amount of metallic oxide in the contact material on the resistant to elec- tric erosion and fusion welding was dis- cussed. 讨论分析了 Li_2O 及金属氧化物含量对接点材料抗电侵蚀性及抗熔焊性的影响。
- Tack/Fusion Mode is for temporary placement or permanent fusion welding, making short work of post/stud attachment to earrings, tie tacks, broaches and more. 融合模式是临时安置或永久熔焊，快速焊接柱/螺柱附件，耳环，紧密大头针，刀等。
- Provide special requirements to fusion welding of contract (contract requires manufacturer having quality system accords with GB/T 19001 or GB/T 19002). 对合同中的熔化焊接提供专门的要求（合同要求制造商具备符合GB/T 19001或GB/T 19002的质量体系）。
- Provide fusion welding in contract with special requirements (contract requires manufacturer having quality system different from GB/T 19001 or GB/T 19002). 对合同中的熔化焊接提供专门的要求（合同要求制造商具备不同于GB/T 19001或GB/T 19002的质量体系）。
- The Characteristic of Gas Concentration Relaxation in the Closed Chamber Test 气敏元件闭室测试中气体浓度变化的特征
- earth pressure of closing chamber 土舱压力
- Based on maximum load CTOD, the resistance to initiation fracture at different temperatures for base material and butt fusion welding joint of PE pipe were tested, compared and analyzed. 以最大荷载CTOD为基础,对聚乙烯管道的母材及其热熔对接焊接头在不同温度下的抗开裂性能进行了测试、比较和分析。
