| 查看: 278 | 回复: 3 | |||
| 当前主题已经存档。 | |||
| 【有奖交流】积极回复本帖子，参与交流，就有机会分得作者 yuepeiiccas 的 4 个金币 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[交流]
【求助】 外文文章的几句话的表述
|
|||
|
高分子专业英语高手请帮我修改下下面的五句话,使之意思更加明确，更有文采： 鄙人再次先谢过了！ 把中文也附上了! 1.It has been reported that reaction under mild thermal conditions of 110 ℃ even with the exsistence of little stannous octoate as catalyst can avoid side reaction. 据报道，在110℃的温和的热反应条件下（即低温），甚至在少量的催化剂的存在下，副反应也可以避免。 2.This paper aims at preparing biodegradable aliphatic block copolymers with combined mechanical and thermal properties with reduced cost. 本文旨在制备低成本且力学性能和热性能俱佳的可生物降解脂肪族嵌段共聚物。 3. Moreover, Tm of chain-extended 2000 based on 20 in Table 3 is lower than that of PBS20, i.e. 108.0 0C in Table 1. The reason is that B group disturbed the crystallite structure and reduced crystallinte size. 另外，Table 3中的20基（原料的编号）的嵌段共聚物2000（样品的编号）的熔点比20的108.0 0C要低。原因是个基团B破坏了晶体结构使球晶的尺寸变小。 4.Especially for the tensile strength, the block samples with the same portion of soft block showed the values of 27.8 and 29.8 MPa for 1 and 1’, respectively, in contrast with 18.0 MPa for the random copolymers. 特别是拉伸强度，软段含量相同的嵌段共聚物1和1’分别为27.8 和29.8 MPa，而对照的无规共聚物的拉伸强度仅为18.0 MPa。 5.The total effect is the increase of tensile strength because crystallization plays a dominant role in the mechanical property as the relative low concentration of A groups employed in our experiment. 总的结果是拉伸强度增加了，这是因为结晶在力学性能上起了主导作用，这可能是因为A基团的浓度较低吧。 6.What should be noteworthy was that block copolymers demonstrated extraordinary toughness with impact strength above 743 J/m (some of the specimens were even not broken when doing the izod impact experiment) for 2010, representing a remarkable 19 times of 38.9 J/m for pure sample. 值得注意的是嵌段共聚物的韧性超乎寻常，其冲击强度高于743 J/m，这是纯样品的38.9的19倍。甚至一些样品做缺口冲击实验时重不断。 7. The satisfactory tensile strength of block copolymers may be attributed to the formation of allophanate crosslinks by the introduction of excess TDI. The presence of allophanate crosslinks can be proved by the highest molecular weight of 20 series copolymers, followed by 40 ( in Table 2). This is because polyols with lower molecular weight needs more TDI to chain-extension. As the molar ratio of TDI to polyols was fixed at 2.1/1, relative more excess TDI was applied for 20 based copolymers which would cause more allophanate crosslinks. As a result, highest molecular weight in Table 2 is observed for the 20 based copolymers. The resulted additional chemical tie points by allophanate crosslinks lead to a more uniform stress distribution throughout the sample, thus preventing plastic flow of the crystals and leading to stress-transmission through soft segment. The more uniform stress distribution in combination with increasing chemical crosslinks led to the increasing tensile strength. 嵌段共聚物令人满意的拉伸强度归于过量的TDI所形成的脲基甲酸酯交联键。脲基甲酸酯交联键可以从20系列的共聚物的分子量最高，其次是40系列的分子量而得到证实。这是因为低分子量的二醇需要更多的TDI来扩链。由于TDI与二醇的摩尔比固定为2.1/1, 对20系列来讲，过量的TDI就会多些，这将导致形成更多的脲基甲酸酯交联键。因此，如表2所示，20系列的分子量最高。颜色标记的话没有错误，只需改写下，想在保留原意的前提下换种表达方式。 [ Last edited by wellok101 on 2008-10-5 at 18:33 ] |
回复此楼» 猜你喜欢
材料考研调剂
已经有3人回复
-
材料调剂
已经有12人回复
-
英一数一408，总分284，二战真诚求调剂
已经有14人回复
-
085410 一志愿211 22408分数359求调剂
已经有4人回复
-
271求调剂
已经有19人回复
-
385分 生物学（071000）求调剂
已经有3人回复
-
一志愿安徽大学计算机科学与技术学硕，331分求调剂
已经有3人回复
-
318求调剂，计算材料方向
已经有8人回复
-
291求调剂
已经有25人回复
-
一志愿北京科技大学085601材料工程英一数二初试总分335求调剂
已经有6人回复
» 本主题相关商家推荐: (我也要在这里推广)
djxustc
铁杆木虫 (正式写手)
- 应助: 14 (小学生)
- 金币: 6109.7
- 散金: 78
- 红花: 291
- 帖子: 504
- 在线: 2381.8小时
- 虫号: 615187
- 注册: 2008-09-29
- 性别: GG
- 专业: 生物医用高分子材料
★ ★ ★
yuepeiiccas(金币+3,VIP+0):谢谢帮助！
yuepeiiccas(金币+3,VIP+0):谢谢帮助！
|
1.It has been reported that side reaction can be avoided with little stannous octoate as catalyst at 110 ℃. 2.This paper reports the mechanical and thermal properties of biodegradable multiblock copolymers. 3.Moreover, the Tm of chain-extended 2000 is lower than that of pure sample in Table 3. The reason is that the Diisocyanate reduced crystallinte size and inferior. 4.Especially for the tensile strength, the multiblock samples with the same soft block have the values of 27.8 and 29.8 MPa for 2020 and 4020, respectively, in contrast with 18.0 MPa for the random copolymers. 第五句话看不出你要表达的意思。 |
3楼2008-10-04 01:52:33
wonderful_me
捐助贵宾 (职业作家)
- 应助: 8 (幼儿园)
- 贵宾: 0.001
- 金币: 11681.7
- 散金: 4919
- 红花: 29
- 帖子: 4648
- 在线: 643.3小时
- 虫号: 406426
- 注册: 2007-06-18
- 性别: GG
- 专业: 高分子物理与高分子物理化
★ ★ ★
yuepeiiccas(金币+3,VIP+0):谢谢帮助和体的建议！能继续帮忙吗？
yuepeiiccas(金币+3,VIP+0):谢谢帮助和体的建议！能继续帮忙吗？
|
这几句英文确实很中文。针对这几句给楼主两个建议： 1、学会用被动语态； 2、有时中文的一句话要学会拆分成为英文的几句话，用简单句或修饰句皆可。 以第一句为例：(老实说，这句真的不大看得懂,事实上每一句都看不全懂，lz最好给出中文) 原句： It has been reported that reaction under mild thermal conditions of 110 ℃ even with the exsistence of little stannous octoate as catalyst can avoid side reaction. 改后： It has been reported that the side reaction can be avoided (to some extent or effectively??) because XXX reaction is dominant under mild thermal conditions of 110 ℃ even (in the case of??) using very small amounts of (不要用little) stannous octoate as the catalyst. 另外，不赞成lz明码标价“一句2金币！”，通过虫子给你的建议自己修改，提高才快。 [ Last edited by wonderful_me on 2008-10-4 at 11:41 ] |
2楼2008-10-04 01:26:31
4楼2008-10-04 15:32:14
