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Methods HBV DNA was extracted from the serum of patient with hepatitis B. The X gene was amplified by PCR using the primers with EcoRI and HindⅢ digestion sites, and then cloned into pronucleus expression vector pMAL-C2X, which was detected by EcoRI and HindⅢ digestion and sequence.

从乙肝病人血清中提取HBV DNA；以带有EcoRI和HindⅢ酶切位点的引物，用PCR方法扩增X基因；而后定向克隆到原核表达载体pMAL-C2X上，经酶切鉴定和序列分析；以IPTG诱导X融合蛋白的表达。

Because of the wavelength of the x rays

由于使用的 X 射线的波长使软性 X

In order to gather the information we need about y,according to the model,we regress x against y.

为了在模型中，从x中得到所需要的与y有关的信息，我们用y来回归x。

What is the significance of X?113. What are the facts about X? Reportage

这个其实和问题2有些类似，但是主要用于描述事件类的X，会有更清晰的思路。

Moreover, there exists a morphotropic phase boundary for the composition at x= 0.33 , and the rhombohedra phase and tetragonal phase coexists for the composi tion near MPB, but the pure rhombohedra phase and tetragonal phase separately exists for the composition away from MPB.

陶瓷样品X-射线衍射相组成和相结构分析表明：所有陶瓷样品均为纯钙钛矿相，无任何其他杂相出现；且组成在x=0.33处存在一准同型相界，在该相界附近三方相和四方相共存，而远离该相界则分别为纯三方相和四方相。

Rhys had acquired a defective gene on the X-chromosome-inherited from his mother.

里斯的 X 染色体是一个基因有缺陷（这个 X 染色体是从母亲那里继承的）。

Methods At first, the relationship of linear or non-linear between dependent X and independent Y in original data can be distinguished by scatter diagram which can be made through Excel software.

方法通过利用Excel可绘制散点图的功能，了解原始数据自变量X和因变量Y间的线性与非线性关系，并由自变量X和因变量Y的自然对数转换后的散点图的情况，决定采用何种曲线拟合。

Based on the experiment, a finite element analysis model is established to predict the longitudinal shear modulus of X-cor sandwich structures.

在实验基础上，建立了X-cor夹层结构有限元分析模型，分析了Pin植入角、Pin直径以及Pin分布密度对X-cor夹层结构剪切模量的影响。

Is a many-valued function of x which is a collection of single-valued functions called branches.

是一个x的多值函数，其中x是一个包含了branch的集合，而branch是一单值函数。

SPANXA1 (sperm protein associated with the nucleus, X-linked, family member A1) is one out of approximately 300 candidate genes. The expression level of SPANXA1 is up to 100-fold in CL1-0 compared with that of CL1-5 assayed by RT-PCR.

SPANXA1（sperm protein associated with the nucleus， X-linked， family member A1）即为其中之一，因为此基因存在於X-染色体上，在遗传及演化上有著重要意义，且与肺癌的相关性尚未有任何的文献报告，值得我们更进一步的探讨。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。