您要查找的是不是：
- gray Verhulst model 灰色Verhulst模型
- dynamic equal dimension new information Verhulst model 等维动态Verhulst新息模型
- The Solution and Application Research of Verhulst Model in Population Forecast 费氏人口预测模型的求解及应用研究
- His hair became gray when he was only forty. 他刚刚四十岁时，头发就变得灰白了。
- His face turned gray as he heard the bad news. 听到这个坏消息后，他的脸变得苍白。
- It is a medium- size samsonite, and it's gray. 它是一个中型的灰色绅耐特皮箱。
- Standing by him was a model worker. 站在他旁的是一位劳动模范。
- The blue shirt and gray tie are a good match. 蓝衬衫和灰领带很相配。
- Stolen chips can find access to the gray market. 偷来的芯片可在水货市场上找到销路。
- He was still looking gray and very tired. 他看上去仍然面色苍白,疲惫不堪。
- I think I can get that special model for you. 我想我可以为你找到那种特别的型号。
- His black hair was tinged with gray. 他的黑头发带着一点灰白。
- She has been held up as a model worker. 她被推举为模范工作者。
- He showed us a model of the new office building. 他给我们看了新办公楼的模型。
- He taught Tom how to make a model airplane. 他教汤姆作模型飞机的方法。
- A yellowish gray to pale orange yellow. 土黄色，浅黄褐色一种黄灰色到淡桔黄色
- John is repairing his model plane at his leisure. 约翰不慌不忙地修理着他的航模。
- The old sailor chipped out a tiny model boat. 那名老水手一点儿一点儿地削出一个小船模型。
- Gray or white with or as if with age. 灰白的因年老而头发灰白的
- The luxury model gives a smoother ride. 坐这种豪华型汽车感觉很平稳。
