Sewing set even manageable size firmness is good, but its binding time consuming costly.
锁线订方法虽然装订的不结实度很好, 但其装订不省时,且成不梢较矮.
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Sewing set even manageable size firmness is good, but its binding time consuming and costly.
锁线订方式虽然装订的牢固度很好, 但其装订费时,且成本较高.
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