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- 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。
- 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;
- closed chamber method 静态箱法
- 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。
- Using the grid ionization chamber method and small solid angle method,the number of 238U nucleus in the highly pure U3O8 sample is determined. 用屏栅电离室法和小立体角法测量了高纯度U3O8样品中的238U核素数目。
- 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。
- Formaldehyde emission levels of four kinds of wood-base d panel (Plywood,Blockboard,Particleboard and MDF) were studied with perforate m ethod and large chamber method. 分别用穿孔法和大室法研究了4种人造板材(胶合板、细木工板、刨花板和中密度纤维板)的甲醛散发水平。
- Abstract: Using the grid ionization chamber method and small solid angle method,the number of 238U nucleus in the highly pure U3O8 sample is determined. 文摘:用屏栅电离室法和小立体角法测量了高纯度U3O8样品中的238U核素数目。
- 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。
- Fig. 5 . Pixel grouping of the digital chambering method. 圖五、牡蠣殼影像数位測量法之像素分群。
- Coupled chamber method reciprocity calibration 耦合腔法互易校准
- jacking with relay chamber method 中继间顶进法
- Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber 单间闭室内锥形辐射源的烟尘灰暗度的标准测试方法
- He closed the deal successfully and was home free. 买卖成交了,他松了一口气。
- People say that the tiger is still lurk close to. 人们说那只老虎还躲在附近。
- The boss readily closed with the offer. 老板马上接受了这个报价。
- Have you closed the gate and windows? 你把门窗关严实了吗?
- earth pressure of closing chamber 土舱压力
- He closed his speech with a funny joke. 他用一则有趣的笑话结束了演讲。