According to the practices of natural conservation, a concept of minimum landscape is added to the concept of biologicalminimum area.
根据自然保护实践，提出最小景观，扩充了生物最小面积概念。
2
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。
3
Minimum 2 years experience of biological instrument support or sales, well understand biological instrument market of China.