难

Inner of high temperature is very easy to dock a place to the steel tube coating creation destroys welding because the operation is complicated and Asbestus rope heat insulation effect. Change in the area metallographic organization fever of arousing is affected and the remaining strain arouse strain corroding a dehiscence to create inner steel tube bringing about the ring oxygen powder series falls short of success. Carrying out a certificate is not a preferred plan.

此种方法由于扩口时的精度不高，现场施工环境和条件所限，很难达到预期的效果，加之操作复杂、石棉绳绝热作用的不充分性等引起的焊接高温很容易对钢管对接处的内涂层产生破坏，同时还引起热影响区金相组织发生变化、产生残余应力而引起应力腐蚀开裂，造成环氧粉末系列的内防腐钢管功亏一篑，实践证明不是最佳方案。

Cancer of ovarian and transparent cell is most constant tumour of as epithelial as the ovarian surface of confuse of interblend of tumour of cell of the former reproduction that send a gender sex, especially with yolk bursa tumour and asexuality cell tumour are differentiated harder.

梗概： 卵巢透明细胞癌是最常和原发性生殖细胞肿瘤相混淆的卵巢表面上皮性肿瘤，尤其和卵黄囊瘤和无性细胞瘤较难鉴别。

Dr. Jennifer Ashton: This is the most prevalent, common incident and ailment and it's also the most difficult to treat.

珍妮弗·阿什顿医生：背痛是最普遍、最常见的问题和疾病，也是最难治的病。

If you ask me, I think it's difficult.

如果你问我，我想那是很难的。

Sometimes it's hard to have a great perspective on the asking price for your home.

有时实在很难有一个大的角度对要价为你的家。

ASM: It's considered to be very difficult, but I have never found it so.

安妮-索菲·穆特：开头被认为是很难，但我从来没有这种感觉。

The petroleum of BoHai bay is a kind of high gluey, asphaltum and viscosity crude oil. Its emulsion is very difficult to be broke, only less than high pour point and heavy crude oil. And it is always a serious problem to choose several good kinds of demulsifiers in the oil gathering process of BoHai bay.

渤海地区海上原油的特点是属于高胶质沥青质环烷基稠油，其所形成的原油乳状液是比较难处理的原油乳状液，它的脱水难度仅次于高凝稠油，其针对性破乳剂的选择一直是困扰生产的主要问题。

I wish I have aspiration that I will do whatever I want.

我相信要做到这一点是很难的，如果我对你说，我们来讨论一下：你觉得自己是否想去做任何你想做的事？

It is too hard to assemble.

这是太难组装。

It ' s difficult to assess the effects of these changes.

很难评价这些变化的影响。

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。