To investigate the parameters of parallel cut blast without empty holes, an advanced numerical method is used to study the explosion effect of charge in hole perpendicular to a free surface.

为了考查无空孔直眼掏槽爆破参数，采用数值模拟方法研究单自由面垂直炮孔的爆炸作用问题。

youdao

Some local authorities have already announced plans to not just scrap the council tax discount on second homes and empty properties, but to charge double the standard rate on those properties instead.

BBC: Council Tax Benefit change 'to create poll tax Mk II'

And its a charge that is as empty of truth as it has been frequent.

FORBES: Are Speculators Responsible for Today's Higher Oil Prices?

It has also voted to cut council tax concessions for empty homes and bring in a 150% charge for properties left vacant for two years or more.

BBC: Derelict house