Armstrong initially had some difficulties squeezing through the hatch with his portable life support system (PLSS).
ˈɑːɹmstɹɔŋ ɪnˈɪʃəli hˌæd sʌm dˈɪfɪkˌʌltiz skwˈiːzɪŋ θɹuː ðə hˈætʃ wɪð hɪz pˈoːɹɾəbəl lˈaɪf səpˈoːɹt sˈɪstəm pˌiːˌɛlˌɛsˈɛs.