The instantaneous optimal closed-open-loop control equations are derived.

求出了瞬时开闭环最优化控制方程。

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Banks closed on Friday afternoon and did not open again until Monday morning.

银行星期五下午关门，直到星期一早上才会再开门营业。

《柯林斯英汉双解大词典》

Geigl herself believes that with cooperation between bench and field researchers preserving fossils properly could open up avenues of discovery that have long been assumed closed.

Geigl 本人相信，如果研究人员和野外研究人员通力合作，妥善保存化石，可能会开辟长期以来被认为封闭的发现途径。

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(Speaking) One irate man told French radio he did not understand why Lyon airport authorities did not open at least one runway, closed by a 20-centimeter snowfall.

VOA: standard.2010.01.10

The resulting remodel of the shipping magnate's 37th-floor Miami Beach condo turned a three-bedroom, closed-in space into a two-bedroom open loft.

WSJ: Sailing the Wide Miami Sky

Floating-rate funds come in three varieties: open-end, closed-end and a hybrid of the two.

FORBES: Fixed Income for Bears

Legislation to open up closed-shop professions, among them truckers, taxi-drivers, pharmacists and lawyers, needs fine-tuning.

ECONOMIST: How much more can Greeks take?