Sentence examples for essential and difficult from inspiring English sources

However, the problem becomes quite essential and difficult to solve in space conditions.

It is an essential and difficult job, involving heavy gear and extreme working conditions on an ice cliff riddled with crevasses.

The cross-section design has a significant effect upon project scale, technical difficulty, construction cost and so on, hence it becomes the most essential and difficult part in the design of immersed tunnel.

Alignment is essential and difficult to attain, particularly as the company story evolves. .

Sales associates need to understand whether the shopper is looking for a product that will come out of disposable income, such as cosmetics, or a more essential and difficult to understand product such as an over-the-counter drug or first aid treatment.

Nations with advanced IT-industries have realized that developing competence in information technologies including new media is essential, expensive, and difficult; large-scale IT systems are gaining economic feasibility and various national research and education programs for stimulating these developments are underway.

Last Friday, thousands of citizens took to the streets, angry over increasing prices on essential goods and difficult living conditions.

Mindell's experience leads him to a similar conclusion to Markoff's: the essential (and most difficult) challenge is designing the interfaces that keep humans in the loop.

Getting a smooth cut isn't essential and is difficult if just using a hacksaw.

Changing physicians' long-held patterns of behaviour and the environments in which they work is essential yet complex and difficult.

Access to financing at all stages of business development for women entrepreneurs is essential and is especially difficult when growing from a micro business, largely funded my micro-finance, to a SME needing to graduate to more commercial banking products.