hard bone

Sunhu area is a piece hard bone in oil _ gas expLoration of North China oil field.

摘要孙虎地区是华北油田油气勘探的一块“硬骨头”,长期勘探未获较大突破.

Clank your perseverance and hard bone is an example I will never, I learned from there to exert your strength, through frustration, to success, Dad, you are my role model, I love you!

您的坚忍不拔和铮铮硬骨是我永远的榜样，我从您那儿汲取到奋发的力量，走过挫折，迈向成功，父亲，您是我的榜样，我爱您！

The soil was very hard and as dry as a bone.

这土壤非常坚硬,干透了.

She was trying hard to disgorge a fish bone.

她拚命想把鱼刺吐出来.

The hard bone has dulled up knife blade.

这硬骨头把刀刃弄钝了.

Polymethylmethacrylate ( PMMA ) bone cement has been as a restorative meterial in bone restoration and hard tissue replacement.

聚甲基 丙烯酸甲酯 骨水泥作为骨修复材料在骨修复和硬组织置换中发挥着重要作用.

She was honest and hard-working, and didn't have an unkind bone in her body.

她诚实勤劳，身上没有一点儿不好的气质。

A hard impact on an unprotected bone can result in severe bleeding under the skin.

大力碰撞未保护的骨骼会引起皮下出血.

The hard bandage holds the bone in place while a heilsit heals.

在治疗的时候,用硬绷带固定住骨头.

It has a good biological activity and compatibility, after being implanted into the organizations of human-being, it has no stimulation and exclusion, and form a strong chemical combination with bone, it is a ideal hard tissue substitute materials.

它具有良好的生物活性和相容性，植入人体后对组织无刺激和排斥作用，能与骨形成很强的化学结合，是理想的硬组织替代材料。