1)  shallow water internal waves
浅海内波
2)  shallow sea
浅海
1.
Sand control and productiontechnique in shallow sea(Chengdao) oilfield.;
浅海(埕岛)油田防砂与采油工艺技术
2.
MT surveying test of synchronous acquisition by separate electric and magnetic channels on shallow sea;
浅海电磁道分离同步采集的大地电磁测深观测试验
3.
Several programs and approaches for shallow sea bottom gas pipeline construction are introduced in details with the first landing sea bottom gas pipeline in Chengdao Oil Field as basis, and a whole technology package for construction of landing gas pipeline on shallow sea bottom is explained.
以埕岛油田第1条登陆输气海底管道为依托,重点介绍浅海输气海底管道在施工过程中的一些程序方法,阐述了1套比较完整的浅海登陆海底管道施工技术。
3)  offshore
浅海
1.
Preventing pollution system in offshore oil platform of Shengli Oilfield;
胜利油田浅海石油平台防污染系统
2.
This paper introduces an oil transportation method used in Shengli offshore oilfield,which adopts a production operation mode of Satellite Platform-Submarine Pipeline-Center Platform-Submarine Pipeline-Gathering Station on Shore,and the actual long distance oil transportation by submarine pipelines and the maintenance techniques for submarine pipelines and equipment.
简要介绍了国内浅海油田的发展现状和胜利浅海油田采用“卫星平台—海底管线—中心平台—海底管线—陆上联合站”的生产运行开发模式,以及国外管道维修技术和装备的手段。
3.
The clam is suitable to culture and enhancement in China offshore.
2001~2004年进行了潮上带池塘养殖、潮间带池塘养殖、潮间带底播养殖、浅海底播养殖和浅海筏式笼养5种方式的养殖试验,养殖2年平均壳长和体重达到62。
4)  Shallow water
浅海
1.
Normal mode fluctuation of sound propagating in random shallow water;
随机浅海声传播简正波起伏(英文)
2.
A technique of source target localization for low SNR case in shallow water;
一种适用于浅海小信噪比条件的声源目标定位技术
3.
Horizontal-longnitudinal correlations of low-frequency acoustic field in shallow water;
浅海低频声场的水平纵向相关性
5)  basin of shallow water
浅海盆地
6)  Shengli shallow sea oilfield
胜利浅海
1.
Directional drilling technology for large borehole in shallow strata with small well space in Shengli shallow sea oilfield;
胜利浅海小井距浅表层大井眼定向钻井技术
参考词条
补充资料:-戊内酯、3-甲基丁内酯、咖吗-戊内酯
CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃

中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯

英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton

性质描述: 无色至微黄色液体。凝固点-31℃,沸点205-206.5℃,83-84℃(1.73kPa),相对密度(25/25℃)1.0578,折光率(nD25)1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。

生产方法: 由不饱和羧酸通过闭环反应来合成,例如乙酰乙酸与硫酸共热,或乙酰丙酸在镍、铜等催化剂存在下加氢。

用途: γ-戊内酯有较强的反应能力,可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂,用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。