With Euro Zone growth grinding to a halt and further afield in places like Japan, where the economy has officially joined the ranks of countries in recession, optimism is in short supply.
随著欧元区的经济陷入停滞，再加上日本等其他国家经济不是出轨就是衰退，人们很难感到乐观。
The further research may provide an effective and reliable quantitative testing method for the exact-grinding and initial polishing of aspheric surfaces.
它的深入研究，将为大口径非球面精磨和初抛光阶段提供一种有效、可靠的定量检测手段。
The depths and its uniformity of the surface hardened layer, its microhardness and wear resistance are further improved under two-passes grinding.
双程磨削淬硬可使表面硬化层深度及其均匀性、显微硬度及耐磨性得到进一步提高；
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