箭形效應 的英文怎麼說
中文拼音 [jiànxíngxiàoyīng]
箭形效應
英文
sweep effect-
According to the " solid - particle " theoretical model, a theory model of the dynamic burning - velocity of a rocket - portfire in its igniting delay - time cannulation is established, a theory model of the dynamic delay - time is educed. the factors are analyzed, setting position and shape of a igniting delay - time cannulation that affect its igniting delay - time, the theoretical basis is offered to develop the high - level precision rocket - portfire in the air
本文根據「固體粒子」效應理論，建立了點火延期管動態燃速數學模型，導出了點火延期管動態延時控制的理論計算模型，分析了火箭空中點火延期管的安裝位置及其形態對其延期時間的影響，為高精度火箭空中點火具的工程研製提供了理論依據。Accordingly avoided the competition among ramets effectively. their rhizomes developed root system at first. it was easier for roots to live through the winter in the alpine region with short growth season and was propitious to individual plant to survive
黃帚橐吾和箭葉橐吾的分枝角度多呈0 、 180放射狀格局，有效避免了分株間的競爭；同時在生長季節短高寒地區，分株先形成根系，以根系過冬更有利於分株的成活，是適應對策之一。
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