采用约束关系依赖图(CRDG)表达耦合约束之间的依赖关系，从而建立数值与符号耦合约束模型。
A constraint relation dependence graph (CRDG) is applied to express the dependence of coupling constraints, and establish the numerical and symbolic coupling constraints model.
科洛·图雷在昨晚签下一份新的四年合约后，从而把他余下的职业生涯承诺给阿森纳。
KOLO TOURE last night pledged to spend the rest of his career at Arsenal after signing a new four-year deal.
希尔·德布兰的德甲合约也在六月期满，现在他和俱乐部开始协商续约协议。虽然他似乎并不那么强烈的希望继续留在斯图加特。
Hildebrand's deal with the Bundesliga side also expires in June and he has started negotiations with the club to renew the agreement, although he does not seem keen on remaining in Stuttgart.
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