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- threshold flow density 阈值流量密度,阈值通量密度
- The experimental results showed that a threshold of the energy flow density of ion current exists for this PCVD method using the bombarding ions. 实验结果表明，存在一个离子能流密度的阈值。
- The mathematic expressions of thermodynamic flow density and thermodynamic force are denned. 基本广延量的传递过程也同时是与之对应的能和(火用)的传递过程。
- The dynamic heat flow density distribution of HCC mold during casting is measured fay placing thermal couples inside mold wall. 采用在结晶器壁内埋置热电偶的方法,对水平连铸结晶器在连铸时的动态热流密度分布进行了测试。
- Stem sap flow density characteristics of ailing Betula platyphylla in 2001 was concerned with physiological control of transpiration. 叶感病白桦树干液流具有以上特点，是因为具有较强的蒸腾生理调控力，以适应叶部病害而求得生存。
- The general covariant expressions of the power flow density and total radiation power ofgravitational wave of diagonal metric are given in this paper. 给出了广义协变的对角度规引力波的功率流密度和辐射总功率表达式。
- The simulation results show that the model can reflect the distribution of heat flow density under the dissimilarity load, and then made up the shortage of zero-dimension model and three-dimension model. 通过在不同负荷下的仿真计算，说明了该模型能够反映不同负荷下炉膛内的热流密度分布的不同，从而弥补了零维模型和三维模拟的不足。
- Diurnal sap flow was two-peak or mono-peak patterns which maximum sap flow density of the day was not corresponding to photosynthetically active radiation, whereas mono-peak pattern in the year 2000. 在晴天树干液流密度日变化由单峰曲线转变为双峰曲线，或单峰曲线峰值较光合有效辐射峰值显著提前或推后；
- By means of so-called PCVD method,which has both the advantages of the PVD and CVD the bombarding ion energy and the ion current flow density on the substrate can be independently adjusted. 这种兼有PVD和CVD各自优点的PCVD方法，能独立地分别调节轰击基片的离子能量和离子流密度。
- The cabin has a flat stone for a threshold. 这间小屋用一条扁平的石头做门槛。
- The treaty will be the threshold of lasting peace. 这个条约将成为持久和平的开端。
- He was on the threshold of his career. 他的事业刚刚起步。
- He had never crossed the threshold of a bar before. 他过去从未进过酒吧的门。
- Scientists are now on the threshold of an important discovery. 科学家们很快就会有一项重大发现。
- Diagnostics 3-D Flow Density Field by Moire-layer Upon Layer Method 使用莫尔层析技术诊断3-D气流密度场
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- In convection, hot currents flow upwards. 在对流中热气流向上运动。
- After several pumps, the water began to flow. 用泵抽了几下之后,水流出来了。
- Stipple with Density at 85, Threshold at 20, Dot Size at 3. 画点画密度为85，阈值为20，斑点大小为3。
- The tax threshold for a single pensioner is 450 dollars. 单身养老金领取者的征税起点是450美元。
