群能間隔 的英文怎麼說
中文拼音 [qúnnéngjiāngé]
群能間隔
英文
group energy interval-
With the increase of abandoned time, perennial plants increased, the function communities were richer, p diversity index in two communities reduced with abandoned interval, but the vegetation restoration was slow, the land abandoned for 30 years have not got to climax community
隨撂荒年限的增加，多年生植物的種類和數量逐漸增加，植物群落功能群構成逐漸豐富，群落間多樣性指數隨撂荒時間間隔的增大而逐漸減小。但植被恢復緩慢，撂荒30年仍未達到頂極群落階段。（ a species may be defined as a group of organisms of interbreeding natural populations that are reproductively isolated from other groups and that share in common gene pools
物種是生物界發展的連續性與間斷性統一的基本間斷形式；在有性生物物種呈現為統一的繁殖群體，由佔有一定空間，具有實際或潛在繁殖能力的種群所組成，而且與其他這樣的群體在生殖上是隔離的。The results of the test demonstrated that the system has a good performance in the linearity, dynamic scope, isolation, coherence of the amplitude. the group delay of the upmixers is 2ns, which is better than other domestic manufactures. because the inconsistency between the isolation and the phase coherence, and the error of the test method, we haven ’ t gotten the good performance of the phase coherence. the next work is improving the restrain of the filter to the lo signal and the phase test methods
在單路發射通道上，群時延達到了2ns ，優于國內很多產品。三路通道之間的相位一致性由於測試方法的誤差以及隔離度指標的牽引作用，我們不能調試達到非常好的在相位一致性指標，再下一輪的工作中必須提高濾波器對本振信號的抑制度，改進相位測試方法以達到指標要求。
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