课程资源的开发和利用程度，不仅关系到课程目标的实现，而且制约着课程实施的质量。
The degree that curriculum resources are explored and utilized is relation to curriculum object and quality of curriculum implement.
它不仅仅是关于限制在所有者边界内的服务的重用，而且还关于为别的所有者边界创建服务的管理上的制约。
It is not only about reuses of services constrained by the ownership boundaries, it is about management restrictions on creation of services that might be used by other ownerships.
“总体来说，工业受限于预想的目标，受产业明晰的标准的制约，而且不断受制于商业需要的压力，”他在1945年的报告中写道。
"Industry is generally inhibited by preconceived goals, by its own clearly defined standards, and by the constant pressure of commercial necessity," he wrote in 1945.
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