1) expanding bariiers
扩张壁垒
2) diffusion barriers
扩散壁垒
3) Barriers
[英]['bæriə] [美]['bærɪr]
壁垒
1.
On the Barriers of Requiste Capital in Pharmaceutical Industry Market;
试论医药产业市场的必要资本量壁垒
2.
The System of Technical Barriers to Trade and China s Foreign Trade Development;
技术贸易壁垒体系与我国对外贸易的发展
3.
International logistics is promoted by economy global and supply chain management, but it is confronted with the marketing entrance restrict、 finance barriers and delivery channel.
经济全球化、供应链理念促进了国际物流的发展;而市场进入限制、金融壁垒和配送渠道阻碍国际物流发展。
4) barrier
[英]['bæriə(r)] [美]['bærɪɚ]
壁垒
1.
The Impact of the Green Trade Barrier on Our Country s Foreign Trade and the Countermeasures;
绿色贸易壁垒对我国对外贸易的影响与对策
2.
A Research on the Economic Effects of Barriers to the International Trade in Services;
国际服务贸易壁垒的经济效应研究
5) single-expansion-ramp nozzle(SERN)
单壁扩张喷管
6) expansion wall scraper
扩张式井壁刮刀
补充资料：极大扩张和极小扩张
极大扩张和极小扩张
maximal and minimal extensions
极大扩张和极小扩张匡.习的司出目.公油抽lex妇心.旧;MaKcl.Ma刀‘.oe H Mll.”M田.妇oe PaC山一Pe皿朋] 一个对称算子(s笋nr贺苗c opemtor)A的极大扩张和极小扩张分别是算子牙(A的闭包，(见闭算子(cfo“月。详mtor”)和A’(A的伴随，见伴随算子(呐。int opera.tor)).A的所有闭对称扩张都出现在它们之间.极大扩张和极小扩张相等等价于A的自伴性(见自伴算子(义休.adjoint operator))，并且是自伴扩张唯一性的必要和充分条件.A.H.J’Ior朋oB，B.c.lll户、MaR撰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条