难点

He is such a moodiness,so it is difficul to foresee how about he feedback. 他如此喜怒无常，所以很难预知其反应如何。

Underground projects develope very fast in recent years.But the restriction of environmental and technical conditions makes strucutral design and construction more difficul. 近年来地下工程建设发展迅猛,由于环境或者技术条件制约,使结构设计和施工技术难度增大。

This article describes the condition and techniques of digital library, analyzes the difficulity and key technology in universal retrieval of digital library, and presents a new practical joint-retrieval system. 本文介绍现在图书馆检索现状;分析图书馆统一检索的难点及核心技术,提出一种切实可行的联合检索系统。

Abstract： The method of design of ATS based on Virtual Instrument Technology is presented against the poor modularization and difficulity of upgrading the technology of the system. 摘要： 针对当前传统自动测试系统本身模块化水平低 、 技术升级困难的特点，提出用虚拟仪器技术开发测试系统的方法。

M ethods to divide our hospital's lunger of recent years who have difficul t and p ositive phlegm smear phthisic into two groups(check group and cure group) and pr ocess random analysis. 方法:对我院近年来难治性肺结核、痰涂片阳性病人随机分为两组(对照组和治疗组)。对照组化疗方案相同,治疗组加用卷曲霉素,观察疗效。