主题：several difficulties in english translation.

here are several sentences or vocabularys that puzzle me a lot.Is there anyone who can help me.?thanks

1,This allows the systematic investigation of the ability of the software to model a wide range of effects, principally related to the building envelope.

2,earth-coupling.

3, Although it is principally designed for single-family houses an Advanced Design facility allows its application to be extended to other types of building, albeit single zone.

4,any system whose behaviour is dependent on the passage of time.

5,either using CAD tools or in-built facilities