This is the 6982nd most frequent Japanese word.
マルチストレング
"マルチストレング" is not a standard Japanese word; it may be a transliteration of "multi-strength" in English, referring to multiple levels or varieties of strength.
Here, "マルチストレング" is used as an adjective to describe a certain type of structure that incorporates properties of varying strengths.
新しい技術を使ったマルチストレング構造が発表された。
A multi-strength structure utilizing new technology has been announced.
In this sentence, "マルチストレング" pertains to a type of training involving different levels or strategies of strength conditioning.
マルチストレングトレーニングを行うと、効率よく筋力が鍛えられる。
Performing multi-strength training efficiently enhances muscle strength.
Here, "マルチストレング" is used to describe an attribute of the product, implying it will have various strengths or versatility.