propagation
英[,prɒpə'ɡeɪʃən]
美[,prɑpə'geʃən]
词态变化
复数: propagations;动词: propagate;助记提示
1、pro- "forth" + pag- + -ation.
2、步步为营、稳扎稳打、环环相扣地向前，使其生生不息、香火不灭、永保不虞、连续不断。
3、该词的原始含义是用压条法生根繁殖植物，后来，含义在此基础上进行了引申扩展。英文词源
- propagation (n.)
- mid-15c., from Old French propagacion "offshoot, offspring" (13c.) and directly from Latin propagationem (nominative propagatio) "a propagation, extension, enlargement," noun of action from past participle stem of propagare "set forward, extend, spread, increase; multiply plants by layers, breed," from propago (genitive propaginis) "that which propagates, offspring," from pro- "forth" (see pro-) + *pag-, root of pangere "to fasten" (see pact).
双语例句
- 1. In this paper, a Boiler Operation Optimizing model is built by using BP ( Back - Propagation ) Neural Network.
- 本文引入人工神经网络之BP网络 ( Back-Propagation ),建立了锅炉的运行优化模型.
来自互联网
- 2. If a plant has spotted or crinkled leaves, do not use it for propagation.
- 如果植物的叶子有斑点或者萎缩，就不要用来繁殖。
来自柯林斯例句
- 3. Rose propagation has a long and rich history.
- 玫瑰繁殖有着悠久的历史。
来自辞典例句
- 4. Such rootstocks or cultivars were reproduced true to type by vegetative propagation.
- 这些钻木和品种,通过无性繁殖长成和亲本一样的类型.
来自辞典例句
- 5. Time deviation due to propagation delay can be tolerated.
- 允许存在传输延迟所引起的时间漂移.
来自辞典例句