Minimize drift of the instrument during prolonged operation.
在长期操作中，使仪表的误差减至最小。
Fixed chokes do not provide this flexibility, although they are more resistant to erosion under prolonged operation or production of abrasive fluids.
固定节流器不能提供这种灵活性，不过它们在长时间的工作下或生产磨蚀性流体的情况下更能抗冲蚀。
Fixed chokes do not provide this flexibility, although they are more resistant to erosion under prolonged operation or production of abrasive fluids.
固定节流器不能提供这种灵活性，不过它们在长时间的工作下或生产磨蚀性流体的情况下更能抗冲蚀。
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