Land evaluation is a critical step prior to land planning and utilization.

土地评价是土地利用与规划的关键步骤,是土壤科学研究的主要内容之一.

Helping boys resist these behaviors early on seems to be a critical step toward improving their health and the quality of their social relationships.

桑托斯博士说，“因此，帮助男孩在其早期抵制这些行为，是提升他们健康状况和社会交往质量的关键一步。”

This is a huge technological achievement and it is a critical step to demonstrating that it is possible to build the ultimate computer - a quantum computer in silicon.

这是重大的科技成就，是表明制造‘终极电脑’（用硅原子制造的量子电脑）可行性的关键一步。