技術提携[gijutsuteikei] technical cooperation
業務提携[gyoumuteikei] business partnership
携える[tazusaeru] to carry in one's hand
携わる[tazusawaru] to engage in
携行[keikou] carrying

携帯[keitai] something carried (in the hand)
携帯電話[keitaidenwa] mobile telephone
戦略的提携[senryakutekiteikei] strategic partnership
提携[teikei] cooperation
必携[hikkei] handbook