永久变形
After being set state load, optimized timbering adds support yielding deformation, increases the load-carrying ability and improves the effect of controlling the surrounding rock.
在给定初始支撑强度的前提下,加大支架的让压变形量,提高支架承载能力,大大改善了矿工钢梯形支架控制围岩的效果。
Chinese insurers and their bank partners have halted sales of popular high-yielding investment products in recent days under pressure from regulators, signalling that the explosive growth in premiums that fuelled the industry's aggressive acquisition spree in recent years is set to slow.
迫于监管压力,中国保险公司及其银行合作伙伴近日已停售颇受欢迎的高收益投资产品,这表明推动最近几年中国保险业激进收购浪潮的保费收入的爆炸性增长将放缓。
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