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Build international shipping center and pace of harbor of international container hub as Shanghai accelerate, after house of number of shipping of harbor of Shanghai of pass in and out does not issue be well versed in of channel of deep water of mouth of; the Yangtse River high, boat of pass in and out increasingly incline to is large change, this not only accentuated the workload of pilot, and the difficulty that also added pilotage operation.

随着上海建设国际航运中心和国际集装箱枢纽港步伐的加快，进出上海港船舶数居高不下；长江口深水航道贯通后，进出船型日益趋向大型化，这不但加重了引航员的工作量，而且也增加了引航作业的难度。

The difficulty arises in other technical matters, such as the preve ntion of rapid melting in warmer climates and the funneling of fresh water to shore in great volume.

有困难的是其它的技术事宜。比如，如何防止冰山在较暖的气候中迅速融化以及如何把大量的淡水收集到岸上去。

Study is conducted based on major technical difficulty in window-opening laterally drilling well cementation in small bore hole,with success achieved in salt wells of Suining,Longchang,Changning,Changshan etc.

针对在小井眼开窗侧钻固井过程中存在的主要技术难题进行了研究，并在四川遂宁、隆昌、长宁、长山等盐井的应用中取得了成功。

In the process of traditional electroless plating of fabric, activation and sensitization in two steps are needed to form the catalyst, palladium, on the surface of fabric, leading to complex technology, difficulty in quality control of fabric and consumption of a great deal of tin chloride and acid.

传统的织物化学镀工艺中，在织物表面形成贵金属把催化剂需要敏化和活化两道工序，工艺复杂，质量不易控制，消耗大量的氯化亚锡和酸。

The difficulty in human relationships and in community is created by the fact that most other humans cannot commune in this way and run a more direct, straight-lined electrical energy flow through and into the form.

人 类关系与人类社区中的难点，是由大多数其他人类无法以这种方式交融，并且运作一个更为直接而直线形电性能量到身体中的现状所造成的。

Teachers should highlight the relationships among the three measures of Central Tendency in classroom teaching.3. Because it was found that students had difficulty in explaining their uses of measures of Central Tendency, teachers should pay more attention to cultivate students' communication abilities (including writing communication and oral communication) in math.4. Teachers should pay attention to students' errors and misconceptions, and provide pertinent teaching activities to deal with these errors and misconceptions.

注重统计知识在课堂教学中的有效实施。2、在教学中使学生进一步明确三种集中量数之间的关系和适用条件。3、由于在研究中发现高中生在解释选用集中量数的理由时有较大的困难，建立教师多注重培养学生数学交流的能力。4、教师平时应与学生多一点互动，多一点深入接触，从而能发现学生在理解集中量数中所发生的典型错误，并能及时帮助学生改正错误。

It is shown that it is difficulty to differentiate each vegetation type among sub-tropical evergreen forest, sub-tropical coniferous forest and sub-tropical deciduous forest because of the mixture of their tree spectra. According to the reflection index in the wavelengths of 750 nm to 1 100 nm, the tree species can be divided into 4 groups with descend in reflectivity. Each tree specie can be differentiated from each other according to its slope of the spectrum curve and its reflection index in the wavelengths of 770 nm to 1 010 nm for each forest vegetation type. The unique first order derivative feature can be used to identify litsea, alder, fir, red birch, southwest birch, large schima confertiflora, taiwania flousian and small leaf schima confertiflora.

研究表明：亚热带常绿阔叶林、亚热带针叶林和亚热带落叶阔叶林等植被类型，因其树种间光谱特征混淆严重，而难以彼此区分；根据其反射率在750~1 100 nm范围上的差异，可将其归为4类；就各植被类型而言，其树种间在光谱曲线坡度，以及在770~1 010 nm范围上具有显著差异，可据此将其区分；木姜子、桤木、杉木、红桦、大叶木荷、秃杉和小叶木荷等因具有独特的光谱一阶导数特征，据此可以识别提取。

However, upon Second Thoughts, I took it away, and wrapping all this in a Piece of Canvas, I began to think of making another Raft, but while I was preparing this, I found the Sky over-cast, and the Wind began to rise, and in a Quarter of an Hour it blew a fresh Gale from the Shore; it presently occur'd to me, that it was in vain to pretend to make a Raft with the Wind off Shore, and that it was my Business to be gone before the Tide of Flood began, otherwise I might not be able to reach the Shore at all: Accordingly I let my self down into the Water, and swam cross the Channel, which lay between the Ship and the Sands, and even that with Difficulty enough, partly with the Weight of the Things I had about me, and partly the Roughness of the Water, for the Wind rose very hastily, and before it was quite high Water, it blew a Storm.

大风整整刮了一夜。第二天早晨，我向外一望，那只船已无影无踪！这使我感到有点意外，但回头一想，我又觉得坦然了。我没有浪费时间，也没有偷懒，把船上一切有用的东西都搬了下来，即使再多留一点时间，船上也已没有多少有用的东西好拿了。

However, upon Second Thoughts, I took it away, and wrapping all this in a Piece of Canvas, I began to think of making another Raft, but while I was preparing this, I found the Sky over-cast, and the Wind began to rise, and in a Quarter of an Hour it blew a fresh Gale from the Shore; it presently occur'd to me, that it was in vain to pretend to make a Raft with the Wind off Shore, and that it was my Business to be gone before the Tide of Flood began, otherwise I might not be able to reach the Shore at all: Accordingly I let my self down into the Water, and swam cross the Channel, which lay between the Ship and the Sands, and even that with Difficulty enough, partly with the Weight of the Things I had about me, and partly the Roughness of the Water, for the Wind rose very hastily, and before it was quite high Water, it blew a Storm.

可是，再一想，我还是把钱拿走了。我一边把钱用一块帆布包好，一边考虑再做一只木排，正当我在做木排时，发现天空乌云密布，风也刮得紧起来。不到一刻钟，变成一股狂风从岸上刮来。我马上意识到，风从岸上刮来，做木排就毫无用处了，还不如乘潮水还未上涨，赶快离开，要不可能根本回不到岸上去了。于是我立刻跳下水，游过船和沙滩之间那片狭长的水湾。这一次，由于带的东西太重，再加上风势越刮越强劲，我游得很吃力。当潮水上涨不久后，海面上已刮起了风暴了。

Action research is adopted as the research method. Based on the difficulty faced while teaching music, this researcher feels that students in general lack the motivation to be creative. Eurhythmics, a favorite activity of students, is thus used as the main strategy to design teaching activities, with the aim to enhance the ability of improvisation. In addition, experimental teaching is adopted and the results presented by the researcher with a behavior observation record sheet and statistics, as well as audiovisual files of improvisation and musical diaries from the students. It is a combination of qualitative and quantitative research, whose results are presented as follows: 1. Designing the principle of a eurhythmics lesson: It starts from "listening" and applies elements of eurhythmics (force→space→time→relationship→locomotor →group formations) in teaching rhythm. It not only accumulates musical ability and experience, but also becomes the source of improvisation.

研究方法采行动研究法，根据研究者在教学现场所面临的困境：学生普遍缺乏创作的动机，因此，以提升即兴创作能力为目标，运用学生最喜爱的肢体律动为教学策略，设计教学活动行动方案，并且采用实验教学，以行为观察纪录表与统计、即兴创作影音档案及音乐日记作为呈现实验结果的依据，是属於质、量并陈的研究，其研究之结果分述如下：一、律动课程之设计原则：由「聆听」开始，运用律动的元素（力量→空间→时间→关系→移动→团体组成等）於节奏教学中，不但累积了音乐能力与经验，成为即兴的创作来源。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。