propagation
英[,pr?p?'ɡe???n]
美[,prɑp?'ge??n]
- n. 傳播；繁殖；增殖
詞態(tài)變化
復(fù)數(shù):?propagations;動(dòng)詞:?propagate;
助記提示
1、pro- "forth" + pag- + -ation.
2、步步為營(yíng)、穩(wěn)扎穩(wěn)打、環(huán)環(huán)相扣地向前，使其生生不息、香火不滅、永保不虞、連續(xù)不斷。
3、該詞的原始含義是用壓條法生根繁殖植物，后來，含義在此基礎(chǔ)上進(jìn)行了引申擴(kuò)展。
英文詞源
- 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).
雙語例句
- 1. In this paper, a Boiler Operation Optimizing model is built by using BP ( Back - Propagation ) Neural Network.
- 本文引入人工神經(jīng)網(wǎng)絡(luò)之BP網(wǎng)絡(luò) ( Back-Propagation ),建立了鍋爐的運(yùn)行優(yōu)化模型.
來自互聯(lián)網(wǎng)
- 2. If a plant has spotted or crinkled leaves, do not use it for propagation.
- 如果植物的葉子有斑點(diǎn)或者萎縮，就不要用來繁殖。
來自柯林斯例句
- 3. Rose propagation has a long and rich history.
- 玫瑰繁殖有著悠久的歷史。
來自辭典例句
- 4. Such rootstocks or cultivars were reproduced true to type by vegetative propagation.
- 這些鉆木和品種,通過無性繁殖長(zhǎng)成和親本一樣的類型.
來自辭典例句
- 5. Time deviation due to propagation delay can be tolerated.
- 允許存在傳輸延遲所引起的時(shí)間漂移.
來自辭典例句