对于直接夹持己精加工的表面时，必须采取加软垫等保护措施，以免夹伤己加工面。
For the surface finishing has direct clamping, must adopt padded protection measures, so as to avoid injury has been machined surface.
夹持块内的连续油管同时受到轴向力、均布内压和夹持块的夹持力的作用，其应力状态直接影响到连续油管的下入深度及其抗挤毁能力。
The CT held by the gripper blocks is loaded by axial force, pressure of inner fluid and gripping force, and its forcing state influenced setting depth and the ability of anti-collapsing.
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