利用金属材料弯曲变形时的塑变硬化特性来弯曲矩形管，较好地解决了雨阳棚骨架现场弯曲加工的问题。
The hardening characteristic of plastic deformation is also discussed, which is useful to bend the steel tubes of awning on worksite.
钢之阳企业有限公司，与广大客户的大力支持，来自世界各地，我们是在钢管和管件的专业供应商。
Sunny steel Enterprise Ltd., with strong support of our customers from around the world, we are a professional supplier in steel pipe and pipe fitting.
方法对1 997年与1 998年(加强管理措施前后)暂住人口涂阳肺结核病人的管治率、完成治疗率及痰菌阴转率进行比较。
Methods To compare the management rate, treatment rate and negative conversion rate of new sputum positive TB patients in transient population in 1997 and 1998 when management measures were improved.
方法对1 997年与1 998年(加强管理措施前后)暂住人口涂阳肺结核病人的管治率、完成治疗率及痰菌阴转率进行比较。
Methods To compare the management rate, treatment rate and negative conversion rate of new sputum positive TB patients in transient population in 1997 and 1998 when management measures were improved.
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