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- Plowland density 耕地密度
- The density of population in this city is very high. 这个城市的人口密度非常高。
- My father has a large plowland to grow vegetables. 我父亲有一块大田地耕种蔬菜。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- The density goes down exponentially with height. 分子密度随着高度的上升而指数衰减。
- The population density is evened out. 种群密度亦趋于均匀化。
- Density exceeded 100 nests per mile. 丝巢密度超过每英里100巢。
- The new plowland they digged up is over five thousand ha. 他们新开垦的耕地面积达五千公顷。
- Do you know the density of population in this area? 你知道这个地区的人口密度吗?
- This wave of excess density is sound. 这种过剩密度的波就是声波。
- The New plowland they dig up reached 5 thousands hectares. 他们新开垦的耕地面积达五千公顷。
- The density logger consists of a radiation source. 密度测井仪包括辐射源。
- Methods Investigating the rodent density by ELTON. 方法用ELTON夹夜法对鼠密度进行调查。
- By the charge density we mean the per unit volume. 所谓的电荷密度是指单位体积的电荷。
- The entropy density is constant ahead of the shock. 冲击波前方的熵密度是恒定的。
- The driver had to stop because the density of the fog made it difficult to see. 由於浓雾使道路很难看清,司机不得不停车。
- Mercury has a much greater density than water. 水银的密度比水大得多。
- Yarn number is a measure of linear density. 纱线细度是纱线线密度的一种度量方法。
- Off-diagonal elements of density matrix go to zero. 经典定义:密度矩阵非对角元趋于零。
- Control of density by mass flow controller etc. 通过质量流量控制器等来实现的密度控制。
