Wheat production takes 50% of its energy input for these two items alone.
小麦生产仅在这两项上就占其能源投入的50%。
The formula of the relation of penetration H and specific energy input W is gotten.
并得到了焊接熔深H与输入线能量W的数学表达式。
The formula of the relation of penetration H and specific energy input W is gotten.
并得到了焊接熔深H与输入线能量W的数学表达式。
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