Screw type rotors have high volume efficiency.

螺杆转子具有较高的工作效率。

youdao

The technical project adopted in present invention can help control remaining gap of the air cylinder as little as possible to improve volume efficiency.

采用本发明的技术方案，可以将气缸的余隙尽可能控制得小，以提高容积效率。

youdao

The notable characteristics of the blower are wide flow volume and rising pressure scope, durable structure, high volume efficiency, low noise and smooth operation.

该风机的显著特点是流量及升压范围大，结构坚固耐用，容积效率高，运行平稳噪音低。

youdao

Comparisons of text hotline volume and efficiency are hard to come by.

NPR: Crisis Hotlines Turning To Text To Reach Teens

This is meant to improve sound quality and maximum volume, while optimising power efficiency and protecting the driver.

ENGADGET: HTC shows off One X+ in the UK, we go hands-on (video) Mobile

The speakers are equipped with onboard DSP, for maintaining accuracy and efficiency at all volume levels, and high-quality, custom-designed neodymium loudspeakers. iLoud is equipped with a bi-amped 4-driver array, and iLoud MINI with a pair of full-range speakers.

ENGADGET: IK Multimedia outs iLoud and iLoud Mini speakers, supplies mobile jam sessions