"core thrust" is a correct and usable phrase in written English.
You can use it to refer to the primary or main focus of a discussion, plan, or argument. For example: "The core thrust of the speech was to emphasize the importance of sustainability in modern society."
While the core tenet of the evangelical left is pacifism, the core thrusts of the secular left are distributional justice and social equality.
The core thrusts of the bill include the sharing of data relating to cybersecurity, and the legal protection of private corporations who do so.
As the core racial thrust to Nazi ideology and policy became ever more apparent, historians started to look at new and differing aspects of the Holocaust, and broadened their investigation to previously neglected victims of nazism, such as Gypsies and homosexuals.
The songs felt surprisingly oceanic, given that they're rigid at the core, and thrusting.
Economists were somewhat reassured by the slower core increase, but the thrust of the report suggested problems to come.
2) The fault core of the Nobeoka Thrust does not exhibit a significant IC value decrease.
The IC values of the borehole core across the Nobeoka Thrust show a remarkable difference between the hanging wall and the footwall.
The IC values of the hanging wall damage zone below 38.8 mbgs (Figure 4b) increase systematically toward the fault core of the Nobeoka Thrust; in other words, the crystallinity of illite decreases toward the fault core.
The similarity between the experimental (Figure 6a,b) and natural (Figure 6,d) samples suggests that the degree of comminution increases progressively toward the fault core of the Nobeoka Thrust.
Horizontal slaty cleavage associated with these frictional-viscous deformations is almost parallel to the main fault core of the Nobeoka Thrust, and these cleavages are inferred to have experienced vertical maximum principle stress conditions during deep burial (Raimbourg et al. 2009; Kameda et al. 2011; Kimura et al. 2013).
