Causes of brown or black spots in brass barrel plating of small hardware were analyzed and some counter measures were put forward.
分析了小五金产品滚镀黄铜层易产生棕黑斑点的原因,论述了黄铜层出现棕黑斑点是零件基材腐蚀的开始。
Mammalian coat color is induced by switching between eumelanin and phaeomelanin, which are produced by melanocytes in hair follicles.
哺乳动物毛色的形成是由毛囊黑色素细胞产生的真黑素和棕黑素之间的转换而引起的 ,控制哺乳动物毛色的基因位点很多 ,且以错综复杂的方式互相作用。
a dark youth, complexion
皮肤黝黑的青年，棕黑的肤色
Anatomy of Digestive and Respiratory Systems in the Amur Rat-snake,Elaphe schrenckii
棕黑锦蛇消化系统和呼吸系统的解剖
Black, brown, dark brown, dark tan and white.
黑色、棕色、深棕色、深褐色及白色。
rendzina like brown soil
黑色石灰土状棕色土
There are black bears and brown bears.
有黑熊，还有棕色的熊。
rtndzina, terra fusca and cerra rossa
黑色、棕色和红色石灰土
A dark grayish brown to black or dark purplish gray.
炭黑深灰棕色至灰黑色或深紫灰色
brown to black North American bear; smaller and less ferocious than the brown bear.
产于北美洲的黑色熊；比棕熊小且不及棕熊凶恶。
"Of, relating to, or belonging to a racial group having brown to black skin, especially one of african origin."
有黑色或棕色皮肤的人种的,有关黑人或棕色人种的,属于黑人或棕色人种的,尤指来自非洲的。
They were brown, he noted, a rather light shade of brown, with dark lashes. '
原来她的眼睛是棕色的，一种淡淡的暗棕色，还有黑黑的睫毛。”
Your shoes are brown; mine are black.
你的鞋是棕色的，我的是黑颜色的。
a Scottish breed with a black-and-tan coat.
苏格兰品种，黑色和棕色皮毛。
a cat with a gray or tawny coat mottled with black.
有黑色斑点的灰色或棕色猫。
the ermine in its brown summer coat with black-tipped tail.
夏季棕色毛的鼬，尾巴尖为黑色。
purple, orange, black, white, blue and grey.
紫色、橙色、黑色、白色、棕色、蓝色和灰色。
Brown shoes don't go well with a black suit.
棕色皮鞋和黑衣服不相配。
a person with dark (brown) hair.
一个黑色或棕色头发的人。
I have black hair, brown eyes, and a beak nose.
我长着黑头发，棕色的眼睛和鹰勾鼻。