Resistance and allowable speed of vessels passing through thelock chamber is analyzed and also the difference between model test and practical operating conditions is analyzed. Then, a cretarion for defining the speed of vessels (or fleets) passing through the lock chamber is proposed.%分析了阻力、允许速度及模型试验与实际运转条件的差异，为确定船舶（队）进、出闸室（或船厢）的速度，进行了初步探讨，提出依据和建议。
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