这仍然取决于客户价值、技术采用周期和该特性打算解决的问题。
This still goes back to the customer values, technology adoption cycle, and the problems the features are intended to solve.
目前除采用一般的直流电外，根据实际的需要还可采用周期换向电流及脉冲电流。
At present in the general of dc outside, according to the actual need to still can use cycle reversing current and pulse current.
采用周期浸泡加速试验方法，研究了石粉锂渣超早强超高强混凝土的耐硫酸腐蚀性。
The sulphuric acid erosion resistance of super-early and super-high strength concrete containing limestone powder and lithium slag was studied by means of accelerating cycle soak test.
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