将一种用手术刀锐性肝实质切除方法与肝切除术中广泛应用钳夹压碎技术的方法进行对比，一项前瞻随机试验。
A method of sharp liver parenchymal transection with scalpel is compared in a prospective randomized manner with the widely used clamp crushing technique.
试验结果表明，混凝土抗压强度不仅与水灰比密切相关，而且与骨料压碎指标有关。
Experimental results show that the compressive strength of concrete is closely related not only to the water-to-cement ratio, but also to the crushing value of aggregate.
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