难

Apha amylase was difficult to bind with the substrate, ther fore the hydrolysis rate decreased with time.

此外，当酶水解发生到一定程度，淀粉分子链长度变得很短。alpha淀粉酶与酶作用物的结合较难，因此水解速率随着反应的进行时间下降。

Methods Thirty-five patients with refractory glaucoma were involved in this prospective and random trial at such high risks as neovascular, uveitis, aphakia, pseudophakic, and young ages. Complex trabeculectomy with single-layer AMT under the scleral flap was performed in 18 eyes and complex trabeculectomy without AMT in 17 eyes.

采用前瞻性随机对照临床试验研究，包括35例（35眼）具有高危因素如新生血管、葡萄膜炎、无晶状体、人工晶状体和发育性的难治性青光眼。18例行复合式小梁切除术联合巩膜瓣下单层AMT，17例行复合式小梁切除术。

I felt when I finally finished the book that I had finished something in myself too, that some way of being with him in my grieving was done and my sense of inadequacy as a caregiver was done. This is sort of an apologia for myself as a caregiver. I was still enmeshed in what I hadn't done right while I was writing this book, and that was hard.

我觉得当我终于完成这本书，我已经完成了一些对自己太，即以某种方式正在同他在我的悲伤是做了我的责任感不足之处，作为一个照顾者，是做了，这是排序的一个纵容，为自己照护，我还是陷入了，我没有做过的事情，正确的，而我写这本书，这是很难的。

And, we still should remember, the presiding apparitor Mike Eaton of Cloudworks once had said: IT is a kind of anguish, IT is very costly, IT is carried out very hard, IT is very complex.

而且，我们应该还记得，Cloudworks的首席执行官Mike Eaton曾经说过：IT是一种痛苦，IT是很昂贵的，IT是很难实施的，IT是很复杂的。

It is very difficult for the most powerful of us to appear on the mortal plane.

我们中最有力量的要想在人间现身实在是太难了。

Politically, a reform that antagonises so many constituencies is hardly appetising.

政治角度而言，和这么多选民的意愿相悖的改革很难让人接受。

Day-to-day culinary life was even less appetising:"They make a sort of porridge or bread of the under bark of the spruce, fir and larch, which they cut in small pieces, mixing it with milk or dried fish."

日常的炊厨生活就更难引人食欲了，"他们用杉树、枞树和松树的里层树皮煮粥或烤面包，先将树皮切成小块，和牛奶以及干鱼混在一起。"

I remember that when I was in the countryside,my family had an apple tree,far away from my home but very close to another family.It was very difficult for us to protect this apple tree.

记得我在农村的时候，我们家有一棵苹果树，这棵苹果树离我们家比较远，离另一家人比较近，我们很难保护这棵苹果树。

At present, the guard system in universities in China is developed based on Windows platform of appliance computer. And there are many problems bothering managing personnel of the computer room such as difficulty to maintain, high cost, high consumption and inconvenience to operate.

目前，我国高校的计算机机房门禁系统都是基于个人计算机在Windows平台下开发完成的，其维护难、成本高、功耗大、操作不便等问题一直困扰着计算机机房管理人员。

It would be hard to find someone who would walk into an appliance store and decide to spend $200.00 more on a washer that offers the same exact quality and features as the one next to it that costs far less.

它将很难找到谁，有人会走进一个家电商店，并决定花费$ 200.00更多的洗衣机，提供相同的质量和精确的特点，作为一个未来给它的费用少得多。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。