一棵棵高大橡树的枝条随风摇摆。The wind was bouncing the branches of the big oak trees.窗户外边是一块草地，高高的草随风摇摆。The windows overlooked a lawn of tall waving grass.船在波涛起伏的海浪中剧烈摇摆。The boat rolled heavily in the troughs between the waves....
The floatation performance of jamesonite with diethyldithiocarbamate as collector is studied.研究了以乙硫氮为捕收剂时脆硫锑铅矿的浮选性质.A new type of inhibitor ( RC ) was used for separating jamesonite from pyrrhotite.研究了新型抑制剂 RC 在脆硫锑铅矿和磁黄铁...
Applicable to the corner seaming of leather shoes lea ther bags.适用于皮鞋、运动鞋、皮包等类似物品的转角缝纫.Best suitable for stitching tents, seat cushions , horse gears, and gunnysacks, cars seaming and so on.适用于帐篷, 坐垫, 抛光输(布输)马具, 黄麻袋, 汽车车...