Varactyls have great strength, and their heads are protected by an armored skull of dense bone.
蜥趾龙力大无比。厚实的头盖骨像头盔一样保护着他们的头部。
Dinosaurs tend to have highly vascular zed bone early in life and then develop dense bone with growth rings as they reach maturity.
恐龙在其一生的前阶段拥有密布血管的骨骼，而当其成年以后则具有厚厚的骨骼。
While in material of natural bone group, fracture line disappeared after 8 weeks with dense bone callus at the site of bone defects, and by 12 weeks bone marrow still not recanalized.
而单纯支架组8周骨折线消失，缺损处有大量骨性骨痂包绕，12周骨皮质连续，骨塑形较差，髓腔未通。
The company's femur implant is dense where stiffness and strength is required, but it also has strong lattice structures which would encourage the growth of bone onto the implant.
该公司研制的植入股骨头在硬度和力度需要高的地方更加坚实，但同时它也有丰富的格状结构，有利于新生骨头向植入骨头里生长。
The company's femur implant is dense where stiffness and strength is required, but it also has strong lattice structures which would encourage the growth of bone onto the implant.
该公司研制的植入股骨头在硬度和力度需要高的地方更加坚实，但同时它也有丰富的格状结构，有利于新生骨头向植入骨头里生长。
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