In particular, the invention is concerned with amido piperazine derivatives.具体地说, 本发明涉及酰氨基哌嗪衍生物.Fmoc, Boc and Pbf were used respectively to protect α - amido, side amido and side guanidine group.对于α-氨基仍采用Fmoc保护策略, 侧链氨基用二...
他从那卷布上剪下一米。He cut off a metre of cloth from the roll.他从那卷布上剪下一米.He cuts off a metre of cloth from the roll.织物形成后, 被送至机器下方的卷布辊上.After knitting , the fabric is carried to a roll at the base of the machine....
Underneath the rear fuselage a large air scoop unita three - bladed propeller mounted behind a cruciform tail.在机身后部下设置有大型进气口用来吸收十字尾翼后面的三叶螺旋桨气流.However, UNITA lost in August Jin, ru kou a large scale in April the followin...
The historian Yakut described it picturesquely as a "mother of castles".历史学家雅库特把它形象地描述为“城堡之母”。He commanded that roads be built to link castles across the land.他下令修建连接各地城堡的道路。Romantic chateaux and castles overlook the riv...
滚轴压脚: 适用于缝制皮革 、 仿麂皮和薄膜.Roller Foot: good for stitching on leather, synthetic suede, and vinyl.缝纫机用楔形针缝制皮革 、 仿麂皮等.Machine wedge needles are necessary for leather, synthetic suede, etc.鞋面: 由义大利麂皮与高级全纹皮质组合而成.UPPER: Combinat...
We got a fix on the missile launching site.我们确定了导弹发射场的位置.She was fascinated at the spectacle of a rocket launching.她被发射火箭的壮观场面强烈地吸引住了.The rocket lifted off from its launching pad.火箭从它的发射台上发射而出....