Pre production trials of activated nickel button containing sulphur by a new process are described.
详尽介绍了以新工艺制取含硫活性镍冠的试生产情况。
Naturally the production Trials always take place in the factory, produced on the production line, under normal production conditions.
量产试作在工厂生产线以正常生产条件进行。
Corn was thought to be more resistant to rising temperatures than other crops. But results from crop trials in Africa suggest that climate change could hurt corn (Zea mays) production.
玉米曾经被认为耐高温性强于其它作物。但来自非洲的作物实验结果表明气候变化会威胁玉米(玉米种)的产量。
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