A Lema<span style="white-space:nowrap;">î</span>tre transformation is set up for the free fall in the interior of a stellar object using the frame of the interior Schwarzschild solution...A Lema<span style="white-space:nowrap;">î</span>tre transformation is set up for the free fall in the interior of a stellar object using the frame of the interior Schwarzschild solution. The metric is calculated in comoving coordinates and field strengths are derived for this metric.展开更多
鸭跖草 Commelina communis L .是顽固性杂草。盾负泥虫 L ema scutellaris 1年发生 1代 ,以成虫滞育。用与鸭跖草同科及近缘科、属的植物对其食性进行测定 ,结果发现其食性单一 ,只取食鸭跖草。盾负泥虫的发生期与鸭跖草的苗期同步 ,...鸭跖草 Commelina communis L .是顽固性杂草。盾负泥虫 L ema scutellaris 1年发生 1代 ,以成虫滞育。用与鸭跖草同科及近缘科、属的植物对其食性进行测定 ,结果发现其食性单一 ,只取食鸭跖草。盾负泥虫的发生期与鸭跖草的苗期同步 ,幼虫的喜食与鸭跖草的多分枝特性相吻合 ,取食营养位与粘液细胞在鸭跖草植株上的分布及细胞的含糖量关系密切。展开更多
文摘A Lema<span style="white-space:nowrap;">î</span>tre transformation is set up for the free fall in the interior of a stellar object using the frame of the interior Schwarzschild solution. The metric is calculated in comoving coordinates and field strengths are derived for this metric.
文摘鸭跖草 Commelina communis L .是顽固性杂草。盾负泥虫 L ema scutellaris 1年发生 1代 ,以成虫滞育。用与鸭跖草同科及近缘科、属的植物对其食性进行测定 ,结果发现其食性单一 ,只取食鸭跖草。盾负泥虫的发生期与鸭跖草的苗期同步 ,幼虫的喜食与鸭跖草的多分枝特性相吻合 ,取食营养位与粘液细胞在鸭跖草植株上的分布及细胞的含糖量关系密切。