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柴油机的过量空气系数通常都大于1。（ ）
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柴油机供油提前角可在发动机非工作状态时人工调整，完成初始设定，工作过程中则通过专门机构根据柴油机工况自动调整。（）
In international sales, a clean, onboard and negotiable bill of lading will generally be required.( )
The original consignee may endorse an order bill of lading either in blank by a bare signature of the endorser or by a special endorsement.( )
Under the Hague Rules 1924, the ocean carrier will not be held liable for the damage or loss caused by the ocean carrier’s actual fault.( )
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