This technique can be used for on-line measuring of main salt concentration and thus directing production.

实现了主盐离子的快速测量，达到了指导生产的目的。

youdao

The variation of concentration of main salt in electrolyte affects the quality of metal coating obviously, and it is for alloy plating coating as well.

在电镀过程中，镀液主盐离子浓度的变化对镀层的影响极大，对合金电镀更是如此。

youdao

And raising the concentration of cuprous cyanide as the main salt is helpful to increasing the current efficiency and throwing power and reducing the electroplating cost as well.

较高的主盐浓度可以提高镀液的电流效率和均镀能力，有利于降低电镀成本。

youdao

But the film's main attraction is Evelyn Salt who plays Jolie.

VOA: standard.2010.07.26

Gritting crews in Wiltshire are continuing to salt the main roads as the cold weather continues.

BBC: Wiltshire snow: Gritting teams remain at work

In Surrey, sand is being used to treat secondary roads and pavements to conserve supplies of salt for main roads.

BBC: Death-trap fear as salt runs low

The Highways Agency is putting 25, 000 tonnes of salt on main roads a day, but producers can only deliver 30, 000 tonnes a week.

BBC: Death-trap fear as salt runs low