What is the most interesting is that when a family had three or more children, we find that the amount of household work for women increased to 55 hours per week while that for men, however, decreased to 14 hours rather than showing any increase by any measure.
62.首先，原材料和制成部件构成了整个生产流程最初步的保障。
First of all, raw materials and manufactured components comprise the initial physical input in the entire manufacturing process.
63.原材料与制成部件到位后先需储存以供后续的组装，但是，组装首先需要依靠生产规划阶段。
Once raw materials and manufactured components are obtained, they are stored for later assembly, but assembly first depends on the production planning stage.
64.生产规划阶段本身又需遵从产品设计阶段的要求，后者则来自大量广泛的产品研究工作。
The production planning state itself follows the requirements of the product’s design stage that proceeds from extensive product research work.
65.组装阶段之后，产品接受检验和测试，然后才能包装、派送和销售。
After the assembly stage, the products are inspected and tested before they are packed and dispatched for sales.
66.第二，作为生产过程最终端的销售为市场调研提供信息反馈并进而影响设计阶段。
Second, sales, which is the end point of the manufacturing process, supplies feedback information to market research and further influences the stage of design.
67.第三，产品的设计不仅是产品研发的结果，还受到测试与市场调研的影响。
Third, a product’s design is not only the result of product research and development but it is also influenced by the testing stage and market research.
68.同样，市场调研还对产品包装和广告具有指导作用。
Similarly, market research also has the role of guiding packing and advertising to play.
69.第一步是单独指导，在此阶段，任务与主题需跟指导者进行全面的探讨。
The first stage is private tutoring in which the task and topic are fully discussed with the tutor.
70.接下来需要组织好论文的内容并写好一个简明扼要的提纲。
Next, it is necessary to well organize the content of the essay and produce a brief outline.
