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...
浪很高, 船的舷侧开始进水.The waves were very high, and the boat began to ship water.有人教他们如何在船的舷侧钻铆孔.They were taught how to bore rivet holes in the sides of ships.然而, 它仍然是PLA海军可用的唯一舷侧反潜鱼雷.However, it remains the only shipboard - su...