One of the difficulties for the circulating fluidized bed (CFB) is the cooling and handling of the bottom slag, which is also one of the neck problems effecting on the operation of CFB.

底渣的冷却和输送是循环流化床应用难点之一，也是影响循环流化床运行的主要瓶颈之一。

youdao

Relaxation for neck problems, we usually approach is micro-RF, the effect is very good, but the treatment is very easy to just be able to easily lie down ten minutes to complete a treatment.

针对颈部肌肤松驰的问题，我们通常采用的方法是微波拉皮，效果非常好，而且治疗起来非常轻松，只需轻松躺十分钟就能完成一次的治疗。

youdao

Serious eye strain can lead to persistent headaches, muscle pain in the head, neck and upper back, as well as long term problems like myopia.

严重的眼疲劳会导致长期的头痛，头部，颈部和上发背的肌肉疼痛，也可能会引起一个长期的问题近视。

youdao

It may be a good option for those with neck problems, but I found it to be a pain in the neck.

WSJ: The Best Travel Pillows: Desperately Seeking Slumber

Center Tyson Chandler, who returned after a 10-game absence due to neck problems, helped force Miami into six turnovers in the 12-minute span.

WSJ

Kaleta, who has a history of head and neck problems, was boarded by Toronto's Mike Brown, who was assessed a minor penalty for the play.

WSJ: Frattin lifts Maple Leafs over Sabres 4-3 in OT