箱包如今已成为人们生活装饰的必需品，箱包设计也必须遵循这个时代的潮流，以更加贴切市场的需要。
Nowadays the case has become the necessity of people. In order to meet the demand of market, the design of case must comply with the trend.
水泥混凝土材料的设计好坏逐渐成为人们关注的焦点，配合比试混凝土材料的重要指标，在设计过程是必须要重视的参数。
The design quality of cement concrete materials gradually become the focus of attention. The proportion is an important index of concrete material and the important parameters in the design process.
水泥混凝土材料的设计好坏逐渐成为人们关注的焦点，配合比试混凝土材料的重要指标，在设计过程是必须要重视的参数。
The design quality of cement concrete materials gradually become the focus of attention. The proportion is an important index of concrete material and the important parameters in the design process.
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