对比系数

The empirical results show that, one should choose BCV rather than ACV when the sample is less than 200, or the autoregression coefficient closes to unit root, or the linearity test is ARCHT or BDS.

通过实证与对比分析，结果表明，当样本小于200或自回归系数接近单位根，或者线性性检验是ARCHT或BDS时，就可以考虑应用自举法临界值而非渐近临界值。

Based on the spectral model of Elfouhaily, the scattering coefficient of sea surface is calculated, and the theoretical results are compared with the experimental data and Kirchhoff approximation with or without shadowing effect considered.

基于Elfouhaily海谱模型，计算了海面的散射系数，将得到的理论计算结果和实验数据及考虑和不考虑遮蔽效应的基尔霍夫近似结果进行了对比。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。