Downgrades can also be trigger events in financial contracts, like credit default swaps, that force money to change hands between parties; and they have historically spooked markets.
During the spring, carbon dioxide changes from a solid to a gas with enough force to trigger small avalanches.
在春季，二氧化碳从固体升华为气体的过程中有足够的能力引发小型雪崩。
3
The force-feedback or haptic controller is a pistol-grip design with a trigger to activate movement and a thumb-controlled side button to open or close the gripper.