棘手

Key management is the core problem of network system security, which deals with the correlative problems from key being generated to ultimately destroyed; it includes system initialization, key generation, key encasement, key distribution, key storage, key renovation, key destruction, etc. Thereinto key distribution and key storage are the two most intractable taches of key management.

密钥管理问题是网络系统安全中首要的核心问题，它是处理密钥自产生到最终销毁的整个过程中的有关问题，包括系统的初始化，密钥的产生、装入、分配、存储、更新、吊销和销毁等内容，而密钥的分配和存储是密钥管理中最为棘手的两个环节。

Obama's call for an international treaty banning the production of new highly enriched uranium and plutonium.

它回避了核扩散这个最棘手的问题，也无意推动奥巴马的一个呼吁：订立国际性条约，禁止生产新的高浓缩铀和钸。

Environmental pollution is also one of the biggest problems especially in big cities.

环境污染也是个棘手的问题，在都市地区尤其严重。

I do not envy you your job. This is a most troublesome case.

我不羡慕你的工作，这是一件是棘手的案件。

For Alexeev, the experiment was exciting because it presented a new method that doctors could use to treat painful genetic skin disorders, such as epidermolysis bullosa, a condition that creates open sores and blisters on the skin's surface.

对于阿莱克谢耶夫来说，这次实验是令人振奋的，因为它提出了一种新方法，医生们可以用这种新方法来治疗棘手的遗传性皮肤疾病，比如表皮分解性水疱症，这种病会使皮肤表面产生暴露的伤口和水疱。

So I was in a good mood and decided to give the Epsilon a tricky support weapon.

在这里，我决定给Epsilon添加一个棘手的资源武器。

Global equity is the awkward issue lying behind the world food crisis.

在世界粮食危机的背后，是全球公平性的棘手议题。

This is an exasperating problem.

这是一个棘手的难题。

Objective To investigate the effects of early postoperative rehabilitation exercise on anal exsufflation in patients following cholecystectomy. Methods 120 cases of patients undergoing cholecystectomy were randomly divided into three groups according to the time of postoperative exercise. The time of anal exhaust after cholecystectomy in the 120 patients was noted and analyzed.

胆囊切除手术患者因麻醉、手术创伤、牵拉等刺激，加之手术时腹腔开放，热量的散发，常导致胃肠功能紊乱，主要表现为肠蠕动消失，术后排便功能障碍，胃肠道运动从抑制到完全恢复需要一定时间，术后腹胀是临床常见且比较棘手的护理问题，如处理不好，对腹壁切口的愈合有不良的影响。

Both have only a screen — no eyepiece viewfinder — which makes them tricky to use in bright sunlight.

两款都只有一个屏幕--没有目镜取景器--这使它们在明亮的阳光下使用，变得很棘手。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。