business / oil and gas

[sunrise111]

Плиз, помогите правильно перевести (только словосочетания, не нужно переводить весь контекст):
BUSINESS
1. web-based expense analysis - ???
Advisory services and web-based expense analysis can be key differentiators.
2. a lot of small business purchasing – часто покупка малого бизнеса???
a lot of small business purchasing is settled by cash or cheques
3. obviously key to increasing SME uptake – очевидно ключ к увеличению использования малых и средних предприятий???
Explaining the business benefits of cards is obviously key to increasing SME uptake.

OIL AND GAS
1. pump system delivers improved oil recovery and facilitates longer step-out distances between subsea assests and host facilities
- ???

2)wide performance envelope - ???
This design provides several key benefits when handling multi-phase flow, including a wide performance envelope, .....

Заранее спасибо.