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Building a BP model by MATLAB to estimate flood damage grade which has complicated uncertain relation between flood damage appraised index,the model has been proved as one kind of fleetness,reliable appraise method by example. 针对洪水灾情评价指标与洪水灾害灾情等级之间的复杂的、不确定的关系,建立了适于洪水灾害灾情等级评价的BP神经网络模型,运用MATLAB来快速估算洪水灾害灾情的等级。经实例验证,该方法为一种快速、可靠的灾情评价方法。
Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
The Evaluation of Damage Grade of Main Pests in the Badaling Forestry Center 八达岭林场主要害虫危害等级评价
He's not in the first grade as a musician. 他不是第一流的音乐家。
Business is now on the up grade. 目前生意蒸蒸日上。
The flood did a lot of damage to the crops. 洪水毁坏了大量农作物。
Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
The storm did a great deal of material damage. 暴风雨造成了大量物质损失。
He collected on the damage to his house. 他收到房屋损坏赔偿费。
The damage to the painting was the work of vandal. 毁坏这幅画的事是恣意破坏公物的人干的。
The accident didn't do much damage to the cylinder. 在意外事故中，汽缸没有受到重大损坏。
The damage to the painting is the work of vandals. 毁坏这幅画的事是恣意破坏公物的人干的。
The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
Careless use of the clutch may damage the gears. 离合器使用不慎可能损坏传动装置。
He received a failing grade on the term paper. 他的期末报告不及格。
Red and yellow grade into orange. 红与黄混合成橘黄。
The twins will enter the fourth grade this fall. 这对双胞胎今年秋季将升到四年级。
He suffered irreversible brain damage in the crash. 他在事故中大脑受伤无法治愈。
Their marriage is on the down grade. 他们的婚姻关系每况愈下。
The trial flight has made the grade. 试飞成功。