同时，区位禀赋约束、国家和地方对金融的控制以及西部农业的弱质性则构成了西部农村金融制度变迁的制约因素。
At the same time, regional endowment restraint, government control on finance and the fragility of west agriculture make up the restrictive factors on change of the west rural financial system.
强势的制造商品牌一般对连锁超市企业有较多约束，而对于自有品牌，连锁超市则拥有绝对的控制权，可以不受制造商的制约。
Strong brands the general supermarket chain enterprise have more constraint, and for their own brands, chain supermarkets have absolute control, can not restricted by manufacturers.
沽出期权则给予权力，而非强制约束，持有人以固订价格卖出股票。
B put gives the holder the right, but not the obligation, to tender a share and receive, in return, a fixed price.
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