However, for the metal mechanical parts which are processed by mechanical method, the influence of its inner residual stress on the thermal deformation error should be considered.
然而，对于由机械加工获得的金属机械零件，必须考虑零件内存在的残余应力对热变形误差的影响。
A document may be signed by handwriting, facsimile signature, perforated signature, stamp, symbol or any other mechanical or electronic method of authentication.
单据可以通过手签、签样印制、穿孔签字、盖章、符号表示的方式签署，也可以通过其它任何机械或电子证实的方法签署。
Therefore, the strength check of multi-internal force from the cross-section of bar can be resolved by means of mechanical method.
为此，利用材料力学方法可以解决杆件横截面上存在多个内力的强度计算问题。
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