area blasting是什么意思

用法例句

8 m were used to perform the multiple row holes millisecond blasting.

2 m的孔网参数 ,进行多排孔微差爆破 ,取得了明显的经济效益。

An approach to the yield enhancement of tube cold mill with multi-array rolls;

初探提高多排辊式冷轧管机的产量

Water quality simulation of coupled effect of multiple sewage outfalls in urban river reach;

城区河段多排污口耦合作用的水质模拟

The Manning roughness coefficients for the multi-pier are evaluated for the various cases of longitudinal and lateral pier spacing and water depth.

对于不同形状的多排基桩及其配置的水力试验,该试验结果仍然可用于计算隧道排水系统的排水能力,进而可总结出一条经验公式。

In particular,the valuable experience to develop several different kinds of external-pressurized gas bearings including double row radial gas supply,double row tangential gas supply,multi-row tangential gas supply is presented and summarized.

特别是对所研制的几种型式小孔供气静压气体轴承(双排径向、双排切向、多排切向等)进行了讨论,得出了小孔供气轴承间隙与失稳转速之间的关系以及最佳轴承间隙规律。

This paper focuses on the study of heat transfer enhancement in the nature convection in the vertical plat by using delta-winglet longitudinal vortex generators arranged in rows.

结果表明 ,在一定 Rayleigh数范围内 ,直角三角翼纵向涡发生器的翼高、翼宽以及多排布置的阵列方式是影响强化换热的主要因素。