Less chemical gets into the subsoil which is particularly important with the light, tropical soils.进入底土的化学物质会减少，这对土质松软的热带土壤而言尤为重要。They embedded the pilings deep into the subsoil.他们把桩深深打进地基下的土中.subsoil cultivator深耕松土机He e...
The resistance is halved if the cross - sectional area is doubled.如果截面积增加一倍,则电阻减少一半.The shares have more than halved in value since the summer high of 572p.股价从夏天572 便士的高价已经下跌了一半以上。The work force has been halved in two ye...