当法兰厚度及法兰总高度均采用标准值时，此两部分标记可省略。
When flange thickness and total height adopt standard values, these two parts of marks may be omitted.
采用分离力时的模拟厚度比压边间隙小是由于法兰区域的变压边力。
The simulated thickness with separation force is smaller than that with blank-holder gap because the BHF is variable in the flange region.
螺栓长度将随着阀门厚度，匹配的法兰。
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