| 2 | 1/1 | 返回列表 |
| 查看: 329 | 回復: 1 | ||
songjianguo銀蟲 (小有名氣)
|
[求助]
幾句英文翻譯,求幫助
|
|
In general, the trans-esterification is base catalyzed while the esterification is catalyzed by acids, although alternative acid/base catalysts could be used but at prohibitive reaction rates. The FAME synthesis stage is followed by several neutralization and purification steps. Nonetheless, all conventional methods suffer from problems associated with the use of homogeneous catalysts, leading to severe economical and environmental penalties. Thishas to change in view of the large growth worldwide in biodiesel production. |
銀蟲 (小有名氣)
| 2 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 297求調劑 +3 | 田洪有 2026-03-26 | 3/150 |
|
|---|---|---|---|---|
|
[考研] 07化學303求調劑 +5 | 睿08 2026-03-25 | 5/250 |
|
|
[考研] 334分 一志愿武理-080500 材料求調劑 +4 | 李李不服輸 2026-03-25 | 4/200 |
|
|
[考研] 材料專碩 335 分求調劑 +4 | 拒絕冷暴力 2026-03-25 | 4/200 |
|
|
[考研] 289求調劑 +9 | 懷瑾握瑜l 2026-03-20 | 9/450 |
|
|
[考研] 286求調劑 +11 | Faune 2026-03-21 | 11/550 |
|
|
[考研] B區(qū)考研調劑 +4 | yqdszhdap- 2026-03-22 | 5/250 |
|
|
[考研] 0856材料專碩353求調劑 +6 | NIFFFfff 2026-03-20 | 6/300 |
|
|
[考研] 求調劑 +6 | 研研,接電話 2026-03-24 | 7/350 |
|
|
[考研] 307求調劑 +3 | 余意卿 2026-03-21 | 6/300 |
|
|
[考研]
|
13659058978 2026-03-24 | 4/200 |
|
|
[考研] 333求調劑 +3 | ALULU4408 2026-03-23 | 3/150 |
|
|
[論文投稿] 急發(fā)核心期刊論文 +3 | 賢達問津 2026-03-23 | 5/250 |
|
|
[考研] 291求調劑 +5 | 孅華 2026-03-22 | 5/250 |
|
|
[考研] 280分求調劑 一志愿085802 +4 | PUMPT 2026-03-22 | 7/350 |
|
|
[考研] 311求調劑 +3 | 26研0 2026-03-20 | 3/150 |
|
|
[考研] 初試 317 +7 | 半拉月丙 2026-03-20 | 7/350 |
|
|
[考研] 0703化學297求調劑 +3 | Daisy☆ 2026-03-20 | 3/150 |
|
|
[考研] 求調劑 +3 | .m.. 2026-03-21 | 4/200 |
|
|
[考研] 材料學碩318求調劑 +5 | February_Feb 2026-03-19 | 5/250 |
|