阐明了固液发动机比冲、可多次启动关机、推力可调、安全性好和成本低等特点。
The characteristics of hybrid engine such as specific impulse, adjustable thrust, safety and low cost were demonstrated.
然而，滴灌及滴灌结合地面覆盖处理降低果实含酸量，因而趋于提高果实固酸比。 处理不显著影响果实选择性采收百分率、产量与果实大小分布。
The percentage of fruit selectively picked on different dates, yield and fruit size distribution were not significantly affected by any of the treatments in both seasons.
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