4.tracing the life cycle of an insect; trace the history of a family.
探索一昆虫的生命周期；追溯一家族的历史
5.books of maps interleaved with tracing paper.
夹有透明描图纸的图册。
6.tracings of apple blossoms against the deep greens of pines.
黛绿色松树映衬下的隐约可见的苹果花。
7.Paw print, or pugmark, tracing is another common technique for counting tigers.
爪印和老虎的足迹样是常用的计算老虎数量的方法。
8.trace a wounded deer; tracing missing persons.
跟踪一头受伤的鹿；追寻失踪者
9.a paper tracing the descent of the novel from old picaresque tales.
追溯古老的传奇故事演化到小说的论文
10.Objective To investigate the risk factors of abnormal intrapartum fetal heart rate(FHR) tracing , increase the prepotency rate.
目的探讨产时胎心监护异常的影响因素,提高优生优育率。
11.An error compensation control method which can improve contour tracing accuracy of aspherical surface ultraprecise machine is introduced.
介绍了一种可提高非球精密加工机床的轮廓跟踪精度的误差补偿控制方法。
12.In this paper,methods for producing highbasis weight tracing paper and commonly adopted transparentizing agents are presented,and suggestions on producing high basis weight tracing paper are advanced.
13.We've fed up with our boresome work , now it's time to enjoy tracing our old but still refreshing campus lives.
我们已经厌倦了烦人的工作。现在是时候重温哪些陈旧但依然清新的的校园生活中了。
14.The flow model of single phase flow in the elbow of the vertical tubular leacher was studied by using NaCl solution tracing and microcomputer sampling.
用盐水示踪、微机采样来研究垂直管道浸取器回弯头内单相流的流动模型。
15.A new algorithm for tracing equiangular curves is presented to improve the machining quality of free-form surfaces.
为了提高自由加工质量,提出一种等斜率线跟踪算法。
16.Objective To study a noninvasive and nonradioactive method, ~ 15N-urea tracing emission spectroscopy,for detecting theHelicobacter pylori(Hp) infection.
目的建立检测幽门螺杆菌感染的无损伤、无放射性方法———15N尿素发射光谱分析法。
17.To carry out a method of tracing and investigation against the industrial sewage directly discharged into rivers so as to search the main pollutive source.
对直接排入河道的工业污水来源采取追踪调查的方法，寻找主要污染源。
18.Find failure root cause by performing component eletrical and physical failure analysis, such like curve tracing, SAM, decapsulation, cross section, SEM etc.
。
样是常用的计算老虎数量的方法。
精密加工机床的轮廓跟踪精度的误差补偿控制方法。
