...健身者训练目的训练频率训练时间训练强度练习者重量训练的器材自由重量(free weight):杠铃(含铁环),哑铃机械重量(machine weight):分离式或套装式的举重机(含叠积的..
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机械重量、占地 Mechanical weight and occupying land area
船舶机械重量 ship's machinery weight
机器重量机械设备重量 machinery wieght
机械操作重量 m tons
由于庞大的体积和重量,现在的农业机械有显著的缺点:它们会把土壤压实,降低土壤孔隙度,杀死有益的生命,这意味着农作物不会长得太好。
With their enormous size and weight, today's farm machines have significant downsides: they compact the soil, reducing porosity and killing beneficial life, meaning crops don't grow so well.
有记载的最早的重量驱动机械钟是1283年在英国贝德福德郡建造的。
The earliest recorded weight-driven mechanical clock was built in 1283 in Bedfordshire in England.
除了不需在汽车上配置传统发动机舱,由于轮毂电机不需要机械传动(一般有传动轴和差别单位),轮毂电机能节省汽车空间并减少重量。
Besides dispensing with the traditional engine bay on a car, hub motors save space and weight because there is no need for a mechanical transmission, with its driveshafts and differential units.
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