关键环节的英文：
key link
As one of the critical steps, identification of risk factors affects the sequent risk evaluation directly.
摘要风险因素辨识作为风险评价的关键环节之一，其结果直接影响后续的风险评价。
n. 钥匙；线索；按键；调；关键
adj. 最重要的；关键的
v. 为…调音；用键盘输入
We have a key for the door of the house and a key for starting the car.
我们有房间门的钥匙和发动汽车的钥匙。
I left the key in the lock.
我把钥匙留在锁上，忘了取下来。
He fished in the bag for the keys.
他在袋子里摸找钥匙。
This is a key laboratory of atmosphere sounding.
这是个大气探测重点实验室。
Idleness is the key of beggary
懒汉出乞丐
n. 环；节；联系，纽带
v. 连接；联系；挽住
open link cable
开口链环锚链
The strength of the chain is in the weakest link.
链子的承受力在于最薄弱的一环。
They forged the links with the Labor Party.
他们与工党建立了联系。
The thermostat is connected by a link to the carburetor
恒温控制器是由一根连杆与汽化器相连的。
Diet and health are strongly linked.
饮食与健康是紧密联系在一起的。