In the process of designing of train, choosing reasonable figure of the train head is a crucial step.
在列车设计阶段，合理的选择列车车头形状是一个至关重要的环节。
Choosing reasonable mining methods can ensure safety in mining and reduce the earth subsidence caused by mining.
合理选择采煤方法，可进一步确保安全开采，减轻因采煤造成的地表沉降。
All this is helpful for more accurate prediction of blade erosion, and for choosing reasonable measures of prevention.
这些都有助于更准确地预测叶片的水蚀和选择合理的防水蚀措施。
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