剑桥雅思18听力答案Test3第31-40完成表格

● is a concept similar to Air Traffic Control,but for satellites rather than planes.

● would aim to set up legal and 31……ways of improving safety.

● does not actually exist at present.

Problems in developing effective Space Traffic Management

●Satellites are now quite 32.……and therefore more widespread

(e.g.there are constellations made up of 33.……of satellites).

● At present,satellites are not required to transmit information to help with their 34…………

● There are few systems for 35…………satellites.

● Small pieces of debris may be difficult to identify.

● Operators may be unwilling to share details of satellites used for 36……or commercial reasons.

● It may be hard to collect details of the object's 37……at a given time.

● Scientists can only make a 38..……about where the satellite will go.

Solutions

● Common standards should be agreed on for the presentation of information.

● The information should be combined in one 39…….

● A coordinated system must be designed to create 40……in its users.