Z - 9b型特点是一个改进11浆叶涵道尾桨，减阻内置螺旋浆采用宽弦、全-复合浆叶而不是像在AS 365n1型中的13片全-金属浆叶。
The Z-9B variant features a modified 11-blade Fenestron faired-in tail rotor with wider-chord, all-composite blades instead of 13 all-metal blades as in as 365n1.
如同Z - 9b, Z - 9c也具有的特征是一个改进11浆叶涵道减阻内置尾螺旋浆，采用宽弦全复合浆叶而不是像AD 365n1型一样的13片全-金属浆叶。
Like the Z-9B, the Z-9C also features a modified 11-blade Fenestron faired-in tail rotor with wider-chord, all-composite blades instead of 13 all-metal blades as in as 365n1.
在二十世纪上半叶关门倒闭后至今，只有素心一家做出了接近明代丝弦品质的蚕丝冰弦。
From the closure of companies in the first half of the twentieth century until now, only Suxin Silk strings has produced strings of a quality that comes close to Ming dynasty ice strings.
渐缩型间隙在叶片前半轴弦受到上通道涡的抑制，减少了叶顶间隙泄漏涡的强度和范围；
Suppressed by the up passage vortex at upstream side of blade, the intensity and scale of the tip clearance leakage vortex is decreased.
叶轮为三片单园弦弯叶，选用半封闭叶轮，并采用可锻铸铁、所以强度高，耐腐蚀；
Impeller for the three single-string bending garden leaves, use a semi-enclosed impeller, and the use of malleable iron, so high strength, corrosion resistance;
叶轮为三片单园弦弯叶，选用半封闭叶轮，并采用可锻铸铁、所以强度高，耐腐蚀；
Impeller for the three single-string bending garden leaves, use a semi-enclosed impeller, and the use of malleable iron, so high strength, corrosion resistance;
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