If the operator mounting holes do not line up with the valve flange holes, the stop screw ( s) should be backed off and handwheel turned until holes are aligned. 假如操作安装的装置孔与阀门法兰孔没有对应上,就要把锁定螺栓退回,扭转手轮式的螺栓孔瞄准为止。
It is entirely possible to stop, refactor, be a little behind on features, slam in a few features, not catch up but screw up the code, and loop forever, never getting benefit. 停下来、重构、稍微落后于特性、专注于少量特性、不赶进度而是优化代码,如此循环往复,却从来不受益;这样的状况完全有可能。