比重测定的

Correlation e-quation between the pycnometric and densimetric determination of relative density was obtained by regression analysis of test data.

用这两种方法测得的结果一致与否，为探求这两者之间相关关系的密切程度和表现形式，通过测定系列香精的密度，并对所得数据进行线性相关和回归分析，得出了比重瓶法与密度仪法所得结果的相关方程。

By field and indoor test, the paper measures soil physical property, soilmoisture constant and soil water movement parameter, provides the soil specificgravity , the soil apparent density, the soil fraction, the soil field moisturecapacity, the soil saturated moisture capacity, the soil percent moisture content ofcom germination and seedlings emergence, the corn wilting point, and alsoestablishes the equation of soil water retention curves, the equation of soil waterdispersion coefficient and the relationship between pressure and soil apparentdensity, and so those provides the parameter for numerical simulation.

通过田间和室内试验，测定了供试土壤的物理性质、土壤水分常数和土壤水分运动参数，得到了该土样的比重、容重、机械组成、田间持水率、饱和含水率、玉米种子发芽出苗土壤含水率、玉米凋萎系数，给出了土壤水分特征曲线方程、土壤水分扩散系数方程及土壤容重与土壤压紧力的关系，提供了数值模拟过程中所需的参数。

So far the company has the ability to produce 7 series and about 40 specifications of produces,different levels of Electronic Balances,mechanical balances,liquid specific Gravity Balance,Tray Torsion Balance,Moisture determination meters,Static water Mechanice Balances.

目前我公司已具备生产不同等级的电子天平、机械天平、水份测定仪、静水力学天平、液体比重天平、托盘扭力天平等七大系列近四十个规格品种的产品，是上海市质量技术监督局认定的专业生产计量器具的企业。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷