The cropdusters are loud enough to be heard half a kilometre away, so the team installs quieter transmission systems and rotors.
农作物喷洒器的声音足以在半公里外听到，因此该团队安装了更安静的传输系统和转子。
Cropduster
原声例句
经济学人 Science and technology
英语百科
Aerial application
（重定向自Cropduster）
Aerial application, or what was formerly referred to as crop dusting, involves spraying crops with crop protection products from an agricultural aircraft. Planting certain types of seed are also included in aerial application. The specific spreading of fertilizer is also known as aerial topdressing in some countries.
- position的意思
- position notation的意思
- position notation positional notation的意思
- position of accident的意思
- position of account的意思
- position of a chord的意思
- position of a hit的意思
- position of anchorage的意思
- position of an extremum的意思
- position of a relative maximum的意思
- position of a rotary switch的意思
- position of a shot的意思
- position of assembly的意思
- position of bearings的意思
- position of bottom plane of cab的意思
- position of bottom plane of main girder的意思
- position of circle的意思
- position of class interval的意思
- position of collision的意思
- position of comfort的意思
- position of covered tools的意思
- position of cushion pressure centre的意思
- position of deckline的意思
- position of earth satellite in digital display的意思
- position of ease的意思