1. The condition of accounts receivable in Chinese enterprises is always unoptimistic: arrears of overdue accounts receivable, high ratio of stagnant debts and bad debts, a serious deterioration in assets quality.
我国企业的应收账款状况一向不容乐观，企业之间相互拖欠，逾期应收账款居高不下，呆账和坏账比例逐年升高，企业资产质量严重恶化。
2. I suspect the failure of germinating the seeds might be due to damping off, a fungus caused by stagnant air and soggy soil condition.
和它的兄弟合照一张，它们都是来自同一地方
3. Based on the characteristics of casing annulus gas-venting wells, the particularity of multi-phase flow in the condition that the casing-head gas flows through a nearly stagnant liquid was investigated. Based on the theory of Taylor bubble, a model to calculate void fraction and pressure gradient in various viscosity liquids was developed. This model is applicable to bubbly flow and slug flow.
以泰勒气泡在黏滞流体中的上升流速作为主要依据，建立了不同油黏度下套管环空放气流动的截面含气率和压降计算模型，并提出了不同黏度、不同气油比的套管定压放气井环空流动计算及套管压力分布的多相流模型，该模型主要适用于泡流和段塞流。