The advantage of biological control in contrast to other methods is that it provides a relatively low-cost, perpetual control system with a minimum of detrimental side-effects.
与其他方法相比,生物防治的优点是它提供了一种成本相对较低、有害副作用最小的永久性防治系统。
This approach to testing leads to a relatively low number of testers.
这种测试策略带来的结果就是相对较少的测试人员。
Asthma has a relatively low fatality rate compared to other chronic diseases.
相对于其它慢性病而言,哮喘的死亡率较低。
It is still a relatively low number compared to deaths from other illnesses.
VOA: standard.2009.12.12
When you're running a site and you're four people, are on the kitchen table, your operating expenses are relatively low.
当你运营一个网站,你们四人围坐在餐桌旁工作,由于运营费用较低。
" ...such as relatively low levels of malaria risk to start with, political stability, a good health system and low levels of population movement bringing in infections from elsewhere."
VOA: special.2010.11.03
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