The phrase "action is poorly" is not correct in written English as it is incomplete and lacks a proper context.
It could be used in a context where you are critiquing the quality of an action, but it needs to be followed by a noun or a verb to make sense.
Example: "The action is poorly executed, leading to confusion among the team."
Alternatives: "action is inadequate" or "action is subpar".
However, their mechanism of action is poorly understood.
Rafelson shows temperamental flair, but the action is poorly staged and flatly lit.
Although its microtubule severing activity is likely important for fundamental processes including mitosis and axonal outgrowth, its mechanism of action is poorly understood.
Agaricus blazei Murrill (ABM) has been shown to exhibit immunostimulatory and anti-cancer activities; however, its mechanism of action is poorly understood.
Methamphetamine, a commonly seen substance of abuse, has been reported to exert detrimental effect on bodily function including the cardiovascular system although its mechanism of action is poorly understood.
Glucocorticoids are widely used in the treatment of human glomerular diseases, but their mode of action is poorly understood particularly in steroid-sensitive nephrotic syndrome, which is most common in childhood and is characterized by a lack of inflammation in the kidney.
Stress is one such variable, but its effects and mechanism of action are poorly understood.
However, the cardiovascular consequences of manipulating glucagon action are poorly understood.
He said the military action was poorly thought out, and had failed to cope with the burning and looting.
Lumbar traction is a common treatment for low back pain; however its mechanisms of action are poorly understood.
Although the functions of cryptochrome have been well demonstrated for Arabidopsis, the effect of the geomagnetic field on the growth of Arabidopsis and its mechanism of action are poorly understood.
