经过实际车铣加工试验,实现了微小型硬铝座体零件的完整加工.The duralumin micro - base - part is produced after the turn - milling cutting experiment.研究了微波焙烧对一水硬铝石矿浸出性能的影响.The effects of microwave roasting pretreatment on leaching behavior of diaspore...
运河上捕鱼的最佳地点是靠近水闸的地方。The best place to catch fish on a canal is close to a lock.然而, 现代捕鱼的方法, 使得越来越多的鱼被捕获.Yet, with modern fishing methods, more and more fish are caught.在一些长期捕鱼的海域, 生物量在此之后又减少了一半.In some long fished areas, ...