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。

youdao

This guide described the relevant features of the AIXPCM and the SDDPCM path control modules in a compare and contrast fashion.

本指南以比较和对比的方式描述了 AIXPCM 和 SDDPCM 路径控制模块的相关特性。

youdao

Android, by contrast, prides itself on its lack of control.

相比之下，Android以不加控制为傲。

youdao

At 80 percent brightness, Liao says the device's 4200mAh rechargeable battery gives it 4 to 5 hours of spreadsheet slinging bliss, and those buttons on the right side might be used to control more than brightness and contrast -- should the company adopt wireless USB as originally planned, Liao intends to have them double as arrow controls, allowing you to cut the cables and still have basic e-reader functionality.

ENGADGET: MEDL Technology's 'The Panel' hands-on Hands-on

In addition, a new panel structure and pre-discharge control technology contribute to an increased native contrast level.

ENGADGET: Panasonic unveils Infinite Black Ultra Panel plasmas for 2012 (eyes-on)

The top-down, centralized control exerted by school reformers was a glaring contrast to the choice and experimentation advocates of school reform purported to be after.

FORBES: Is Diane Ravitch a Hayekian?