pin balance 桶形调整 ; 弓形修正 ; 屏幕图像桶形调整
balance pin 摆销 ; 平衡管脚 ; 平衡钉
balance pin bushing 换平衡钉红布
balance whip pin 摆轮止销
pin pallet escapement balance 销钉式擒纵摆轮
The ultimate balance between jobs created and killed is difficult to pin down, but the net result is far murkier than it might seem.
增加就业和降低就业很难保持完全平衡，但是结果远不是像看上去的那样清晰。
Question: How do I access my balance online, change my card's PIN or view my transaction history?
问：我如何进入我的网上账户、修改我的卡密码和查看我的历史交易记录？
Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.
密闭取心工具主要由外螺纹接头、平衡活塞、限位接头、内外筒、卡箍岩心爪、定位销、密封头、及取心钻头等部件组成。
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