I simply cannot face grubbing through all this paper.我简直受不了要翻阅这么多文件。Farmers are grubbing up ancient varieties of crops.农民正在掘除自古以来就一直种植的各种作物。He found what he wanted by grubbing around in the library.他在图书馆乱翻一通终于找到了需要的资料....
ON THE BLOODSUCKING TABANIDS FROM SOUTH CHINA ( DIPTERA: TABANIDAE )华南地区吸血虻类记略 ( 双翅目: 虻科 )The bloodsucking louse also transmits various commutable diseases such as endemic typhus, trench fever relapsing fever.虱吸血还可传播各种流行...
导线的两端联接到裂环整流器.The two ends of the wire are connected to a split - ring commutator.同步 低频 整流器与推挽整流器相似.The synchronized low - frequency rectifier is similar to a push - pull rectifier.低谐波 、 高功率因数 、 带有滤波器件的整流器.Low harmonics,...