1.
Standing full power
长期有效全权（证书）
2.
In the U.K. a kind of conscription was long in force.
在联合王国，一种征兵制长期有效。
3.
What's the deadline for claim?
索赔的有效期多长？
4.
EXTEND OPTION LONGEST POSSIBLE
请尽量延长有效期。
5.
Demand draft has a very long time of validity.
票汇的有效期限长，
6.
How long will the offer be open?
报价的有效期多长？
7.
How long will the registered trade-mark remain valid?
注册商标的有效期多长？
8.
The longer the time to expiration, the more valuable the option.
有效期限越长，期 权的价值就越高。
9.
How long should our L/C be valid?
信用证的有效期该是多长？
10.
Extension of validity of bid shall normally not is request.
一般来说不应要求延长投标有效期限。
11.
To hold an offer open;to keep an offer open
留盘（指实盘，有效期继续延长）
12.
Extension Conference of the Non-Proliferation Treaty
延长《不扩散核武器条约》有效期会议
13.
They applied for an extension to their visas.
他们申请延长签证有效期。
14.
They extended her visa.
他们延长了她签证的有效期限。
15.
The period of availability of your ticket is seven days.
列车长: 您的车票有效期是7天。
16.
As its expiration, the agreement may be modified or the period of validity may be extended through mutual consultation.
协议期满后，通过协商，可予修改或延长有效期。
17.
Options have lives of up to one year (5 years for warrants).
期权的有效期限长达一年（凭单则为5年）。
18.
A good shift may serve long, but it will not serve ever.
一个好计策可能长期有用，但不能永久有效。