At the second trial, the aim was better, and the ball descended inside the stockade, scattering a cloud of sand but doing no further damage.
第二次炮弹发射得准了点,落到了栅栏里面,扬起了一片沙土,但是没造成更大的破坏。
It has guidance for the trial, design and construction of eolian - sand road.
这对于利用风积沙进行筑路的试验、设计及施工有一定的指导意义。
Sand culture trial and rain-proof mini-plot rial both proved phosphorous had remarkable effect on improving plant's photosynthesis efficiency.
砂培和防雨微区试验都证明磷对提高作物光合效率有显著作用。
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