official speed trial [= official trial]
bend strength and contact fatigue strength
from strength to strength
high strength concrete steel fiber high strength concrete
high-strength concrete and superhigh strength concrete
proportion of tensile strength to compressive strength
Ratio of Compressive Strength to Flexural Strength
Ratio of tensile strength and compressive strength
ratio of tensile strength and yield strength
Ratio of tensile strength to compressive strength
specific ratio of yield strength to limit strength
Strength of contacting fatigue strength
(TMA) Trial Manufacturing Agreement
3414-design fertilization trial