uch as manufacturing planning do not fit well with this narrowly defined model. They tend to span broad activities and require consideration of multiple aspects. Р64. Remedy / solve / alleviate these problems Р67. ... is a difficult problem, yet to be adequately resolved Р68. Two major problems have yet to be addressed Р69. An unanswered question Р70. This problem in essence involves using x to obtain a solution. Р71. An additional research issue to be tackled is .... Р72. Some important issues in developing a ... system are discussed Р73. The three prime issues can be summarized: Р74. The situation leads to the problem of how to determine the ... Р75. There have been many attempts to Р76. It is expected to be serious barrier to Р77. It offers a simple solution in a limited domain for plex
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