不能使用的

Have you ever met this problem when you're using MSN Messenger: Cannot voice chat or video chat with your friend, can't send a file to your friend when you or your friend are behind NATs.

你曾经会见了这个问题，当您使用MSN Messenger ：不能语音聊天或视频聊天，与您的朋友，无法传送文件给您的朋友，当您或您的朋友是背后的地址解析器。

Monocyte chemotactic protein-3 (MCP-3) interacts with multiple leukocyte receptors: bin-ding and signaling of MCP-3 through shared as well as unique receptors on monocytes and neutrophils. Eur J Immunol, 1995; 25:2612-261711 Warrens AN , Jones MD, Lechler RI, et al.

实验中发现，重叠延伸拼接PCR过程中碱基与模板的错配率要明显高于常规PCR反应，即使使用保真性较好的聚合酶也不能避免错配的发生，而可能导致碱基序列的点突变。

As a planetary craft, the banshee wouldn't need high-powered engines to achieve escape velocity and fight in orbit, so instead technicians fitted it with economical twin turbofans.

作为一种行星表面使用的飞行器，女妖战机不需要一台能逃脱星球的引擎并在轨道上战斗，取而代之的是一种技术人员认为比较合适的双涡轮风扇发动机。

In the jig design process, mainly locates by V shape block and the support plate, depends on the straight clamp and the spring clamps, drills turns diameter two to be supposed to use long trades quickly drills the wrap, when drills turns the diameter incline hole uses the plane incline the jig body, when drills turns the diameter incline hole uses is the horizontal-type drilling machine, when face milling 2 V shape blocks and the milling cutter cannot interfere ,therefore V shape block altitude must reduce, the jig design must be convenient, be simple.

在夹具的设计过程中，主要以V形块和支承板来定位，靠直压板和弹簧来夹紧，钻拐径两孔应采用长型快换钻套，在钻拐径倾斜的孔时采用平面倾斜的夹具体，在钻拐径倾斜的孔时使用的是卧式钻床，铣面时2个V形块与铣刀不能干涉，因此V形块高度要降低，夹具设计要方便、简单。

In this paper, we try to introduce fuzzy logic to Usage Control Model. New model is based upon degree of condition's accomplished, it can give user the different fuzzy popedoms.

把模糊逻辑引入使用控制的授权模型，使授权过程对不能通过验证的权限请求并不立即拒绝，而是对用户满足系统约束条件的程度进行分析，再授予最大的权限集。

Many studies have been accomplished byvarious kinds of spectroscopic techniques with some important molecularparameters determined. There are, however, no wide-accepted molecular parameterstaken as a reference and no precise 〓 and 〓 obtained simultaneously so far.

人们运用各种光谱技术对NO在各波段的光谱进行了大量的研究，获得了一些重要的分子结构参数，但却没有一组公认准确统一的分子参数可供使用，也不能同时获得分子参数〓和〓。

In heat treatment field, controlling precision and stability of equipments act as a key role to heat treatment quality of products. Because electronic potentiometer and the two-position type controlling style are using widely in our country to control temperature of most box-style furnaces nowadays, which lead to the heat treatment quality can not satisfy the product requirement as desired.

在热处理行业，设备的控制精度和稳定性等对产品的热处理质量起着至关重要的作用，但目前我国大多数箱式炉还使用比较落后的电子电位差计和位式控温方式，其热处理质量远远不能满足产品质量的要求。

Currently, the anti-influenza antibody is measured by the hemagglutinin- inhibition test. Although it is simple, but the result is easily influenced by the quality and species source of the red blood cells used. Antibody titer determined by HI test cannot reflect the protection titer either.

血球凝集抑制试验(hemagglutinin- inhibition test，HI test)是一至今仍普遍使用来测定抗流行性感冒病毒抗体的方法，此方法虽然快速、简便，但测定结果容易因为红血球的品质及来源而受影响，且血球凝集抑制试验所测定出的抗体效价亦不能反应真正的保护能力。

Hence, it's use as a secret ringtone by kids so their parents and teachers can't hear their cell phones ring.

因此，它的使用作为一个秘密的铃声，由孩子们，使他们的父母和老师不能听到他们的手机响。

Ironically, the proper use of figurative language

具有滑稽意义的是，能否正确使用比喻句依赖于词汇的本体义，因为正是不能辨认这个本体义，才导致交叉纠缠的暗喻和意义的谬误。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。