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- Objective To realize the background condition of Blattella in Changsha airport and to provide science bases for control and surveillance of quarantine infectious disease. 目的掌握长沙空港口岸蜚蠊本底情况,为控制检疫传染病和监测传染病的传播提供科学依据。
- On this condition, the clutters of land, sea, weather and chaff jamming were established in some typical background conditions of radar environment. 在此基础上，建立了典型背景条件下地杂波、海杂波、箔条干扰杂波、气象杂波的计算模型。
- Objective To get the information about the background conditions on some food additives in five beverages in Guangzhou city. 摘要目的了解广州市五类饮料中部分常用食品添加剂使用的本底情况。
- The infrared image this paper involved is with sky-sea background conditions, and the targets are isolated bright spot with lack of structure and texture information, and the targets move slowly between the sequence images. 本文所涉及红外图像为海空背景，小目标表现在红外图像中为一个孤立的亮斑，强度相对于背景较弱，并且在相邻的图像序列之间的运动速度快于背景，是图像中的高频部分，噪声互不相关，也是图像中的高频部分。
- He has a strong political background. 他有强大的政治背景。
- Do exercise every day and you'll be back in condition. 每天锻炼锻炼，你很快会恢复健康的。
- That incessant background music gets on my nerves. 那没完没了的背景音乐令我非常烦恼！
- He insists the condition to use the best material. 他坚持以使用最好的材料为条件。
- You must on no condition tell him what happened. 你决不能把发生的事情告诉他。
- Tracking Algorithm for Laser Signal Under Natural Background Condition 自然背景条件下激光信号跟踪算法研究
- He has a working-class background. 他是工人阶级出身。
- Get the fall in the background, will you? 把瀑布拍进背景中去好吗？
- The patient's condition worsened during the night. 病人的情况在夜间恶化了。
- A background accompaniment, as for a performer. 伴奏为一个演奏者配音伴奏
- The patient was in a pitiful condition. 那个病人处于一种非常可怜的状况。
- The market offer optimum condition for sale. 市场为销售提供了最佳条件。
- She came from a privileged background. 她出身於特权阶层。
- He came from an impoverished background. 他出身贫寒。
- The condition or quality of being pure or chaste. 纯洁纯洁或贞洁的状况或者品质
- This book gives the background of the Civil War. 这本书叙述了南北战争的背景。
