1. 卡阻：鸟击 bird strike | 卡阻 jammed | 松动 loose

2. 拥塞：tray:盘子公文格 | jammed:拥塞 | jam:堵塞

3. 堵：堵车 traffic jam | 堵 to block; to stop up; jammed; (mw for walls) | 车 car; vehicle; machine (Kangxi radical 159)

4. 极限密度织物：jamkalam 印度棉拜毯 | jammed 极限密度织物 | jammer finder 干扰源探测雷达

2. jammed的解释

adj

1. filled to capacity

e.g. a suitcase jammed with dirty clothes
stands jam-packed with fans
a packed theater

Synonym: jam-packedpacked