26A most forms of steel abruptly becomebrittle
27J that resists fractures at much lower temperatures
28B without the need for expensiveadditives
29E providing a lifeline for the besiegedbritish
30I the ships cracked in the icy north Atlantic
31N so scientists have strived to find asolution
32C a more physical approach
33G that is comparable to that of
34H the number of components needed in aconstruction job
35K by replacing solid supports with hollow tubes