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- The incremental effect of rare earth ammonium bicarbonate was investigated by 15N trace technique. 应用15N示踪法研究稀土与碳铵混配的情况下稀土对碳铵氮素的增效作用。
- Abstract: The incremental effect of rare earth ammonium bicarbonate was investigated by 15N trace technique. 文摘:应用15N示踪法研究稀土与碳铵混配的情况下稀土对碳铵氮素的增效作用。
- The difference between intercropped fababean and wheat in using differ ent nitrogen source has been studied by pot experiment with root barrier and 15N trace technique. 摘要 通过根系分隔和15N标记土壤的盆栽试验,研究间作蚕豆和小麦对不同氮素来源利用的差异。
- The difference between intercropped fababean and wheat in using different nitrogen source has been studied by pot experiment with root barrier and (superscript 15)N trace technique. 摘要通过根系分隔和(上标15)N标记土壤的盆栽试验，研究间作蚕豆和小麦对不同氮素来源利用的差异。
- The design consideration of “vector" trace technique was described in this paper. The application of this technique in sinter mix proportioning and its effect were also presented. 本文介绍了矢量跟踪技术的设计思想和在烧结配料中的应用及效果。
- Use magnetic resonance imaging diffusion tensor data and three dimension tracing technique to trace brain white matter fiber tracks in this paper. 目的:使用磁共振弥散张量成像和示踪技术进行三维脑白质纤维束示踪成像。
- The mixing performance of cross flow was studied in turbine ejecting mixer with tracing technique. 摘要采用示踪法研究了涡轮喷射混合器内错流射流混合特征。
- The isotopic tracing technique is an advanced method in the research of photosynthesis of plants. 摘要同位素示踪技术是进行植物光合作用研究十分有效的手段。
- Using 14C tracing technique,the 14C-assimilation and partitioning of 14C assimilates of the cotton plant with monopodial branches were studied. 运用14C示踪技术研究了留营养枝棉株14C同化物生产运转分配规律。
- Stable isotopic traceability technique has been successfully applied in some food areas, and studies in the meat product increased recently. 稳定同位素溯源技术过去已在食品生产的某些领域得到成功应用，近年来在肉制品中的研究增多。
- Using micrographic visual tracing technique, model tests on piping are carried out.The process of piping from initiation to failure is observed. 摘要利用显微摄像可视化跟踪技术进行了管涌模型试验，从细观角度观察到了管涌从开始到破坏的整个过程。
- I can't trace that letter you sent me. 我找不到你寄给我的那封信。
- He spoke without a trace of emotion. 他说话时毫不动感情。
- The combination of geometric optics(GO), uniform theory(UTD) and ray tracing technique has been adopted for radio propagation prediction in microcellular systems in urban area. 本文应用几何光学（GO）方法、一致性几何绕射理论（UTD）和射线跟踪的方法对给定环境下的城市微区信道电波传播特性进行了预
- She helped to select a dress for Ruth. 她帮着给露丝选了一件衣裳。
- Did the police find any trace of the murderer? 警方找到凶手的行踪了吗？
- The retention time distribution of the bubble column and internal airlift loop bioreactor was measured with a pulse tracing technique for comparison of mixing characteristics. 用脉冲示踪法测试了鼓泡塔和内循环气升式生物反应器的停留时间分布,对其流动混合特性作了比较研究。
- They failed to find any trace of the runaways. 他们未能找到逃跑者的任何踪迹。
- She is selective in the dresses she wears. 她对于自己穿的衣服精挑细选。
- There was barely a trace of salt in the soup. 汤里简直一点盐也没有放。
