Advanced English from news story

Increasingly Dense Mobile Devices Present Cooling Challenges in Product Design

   As mobile devices get more sophisticated in their functionality, they are packing greater amounts of internal electronics — heat-producing electronics. It’s up to mobile device designers to find ways to dissipate heat efficiently. While there are several passive-cooling methods, active cooling might be essential in the future.

sophisticated adjective

 ・clever and complicated in the way that it works or is presented (of a machine, system, etc.) 

~highly sophisticated computer systems

"Medical techniques are becoming more sophisticated all the time."

functionality noun 機能性

・the range of functions that a computer or other electronic system can perform (computing)

"Apple launched new software with additional functionality."

internal adjective 内部

・connected with the inside of something [only before noun] 

~the internal structure of a building.

dissipate verb

・to gradually become or make something become weaker until it disappears

"Eventually, his anger dissipated."

*From http://ejje.weblio.jp/*

"To effectively dissipate heat generated by a reactor."

"リアクトルで発生した熱を効果的に放熱させる."

efficient adjective 効率的な

・doing something well and thoroughly with no waste of time, money, or energy

~efficient heating equipment

~the efficient use of energy

"We offer a fast, friendly and efficient service."

"As we get older, our bodies become less efficient at burning up calories."

~fuel-efficient cars (= that do not use much fuel)

efficiently adverb

~a very efficiently organized event

inefficient opposite