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luscar
luscar
2015-03-16 15:17:40
问答

新年第一个月

新年第一个月又回来上班了 南方的雨季 梅雨天 能把你抓狂死 早上开完会议 大家还是各做各 的事 一埋头想想自己微薄的薪水 一声叹息 做业务员其实并不能单靠底薪去生活 毕竟3k的底薪也不算低 但是如何能拿到高额提成 确实很头痛的问题 钱-单=客户=开发信 所以 貌似最珍贵的就是如何写开发信吸引客户 我总结了一下 貌似就是这几个字 高回复率 =basic search, target right (初步调查,有的放矢) + 避开spam过滤词 + 少图片少链接 + 好的标题 + 行文简洁清晰 + 有吸引客户的key point + 运气or时机(排最后但是占了不少权重!) 理想很丰满 现实很骨感 献给一直也在挣扎的外贸友友[收起]
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luscar
luscar
2015-01-16 14:23:01
问答

采购LED light,你考虑过这些问题吗

面对品种繁多的LED light,有些看起来外观一样,但为什么价格会差异这么大呢?你认为同一品种的light产品,亮度越高越好吗?还有些产品,用手去感觉,灯体的表面温度很低,而有些却很高,到底哪一种产品好呢?要解答这些问题,需要了解LED的特性及产品的制造工艺; 处理LED产品的散热,是生产LED产品首先要解决的问题; LED,是Light Emitting Diode的简写,它的发光原理是电子移动产生光,在产生光的同时也产生热量;选择的LED功率大,对应的驱动电流就大,好处是LED的亮度也会更高,但产生的热量也越多,所以不是功率大的LED、亮度高的灯就是好产品,因为温度过高会损坏LED或使LED的光衰加速; 解决的办法是选用合理的驱动电流,处理好热传导,有足够的散热材料,选用热阻小的LED,使用高导热性能的MC PCB,以及足够散热表面积的材料做灯体来降低LED的温度;在LED的热传导过程,由于存在金属面与面的接触热传导,金属表面看起来是平整的,而实际是凹凸不平的,在金属接触面填入导热性能好的胶,可增加热传导的面积,提高导热效果。在有些产品上,由于金属材料表面积的不足,限制了散热问题的解决,如果设计的产品电流很大,LED产生的热量无法导出,产品是危险的,会被高温损坏。所以灯体的表面温度很低,我们首先是要考虑这灯的散热表面积是否足够?否则灯体表面温度很低是由于LED内部温度无法传导出来,灯内温度会过高损坏LED。 选择正确LED的驱动方式,符合灯体散热的驱动电流,是做好LED light的又一个关键; LED的特性决定大功率LED不适合选用稳压电路做驱动,因为采用稳压电路驱动LED时,当电压波动,即使升高的电压很小,都会使通过LED的电流剧增,电流增加温度同样会增高,就有损坏LED的风险。 恒流驱动是LED light的最佳选择,加在LED上的电压波动时,只要驱动器供给LED的电流稳定,LED产生的热量就会稳定,就不会因此产生过高温度损坏LED;同时,由于LED寿命长,LED灯的温度比较高,在设计驱动器时,需要考虑驱动器的元件寿命以及受高温影响,高效率的驱动器可减少在驱动器上的电能损耗,产品更加节能。 拿起一个LED灯产品,是很难直接判断它的好坏的,需要花费大量时间去测试,所以选择有经验的,负责任的生产厂商非常重要,deshun Deshun technology 成立于2001年,是非常有创意和开发设计能力的公司,一直致力于生产高品质的LED产品,相信Deshun technology,就是你生意上可靠的合作伙伴。[收起]
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luscar
luscar
2015-01-16 09:27:01
问答

如何打国际电话

If you're like most English learners, you find it difficult to make phone calls in English. But if you're treling abroad or working in a foreign trading company, using English on the phone is essential. So how do you conquer this last obstacle to fluency? Prepare yourself for any telephone situation with the following phrases and techniques. Introductions Start any telephone conversation by introducing yourself: "Hello, this is Peter Jones. If you answer the phone and the caller fails to identify himself, you can say: "May I ask who's calling, please?" Asking for someone / Making a request If you're calling to talk to a specific person, then phrase your request as a polite question, e.g. "May I speak to Rachel Smith, please?" When you he an extension number but no name you can say: "Could I he extension number 635?" But if you're calling with a specific purpose, then a statement works best: "I’m calling to make a reservation." Holding and transferring "Please hold" is telephone language for "just a moment". When you need to be transferred (connected) to another extension you'll often hear: "Connecting your call..." or "Please hold, I'll transfer you.".” If you call a business at a busy time, you might hear only a brief, "Hello, please hold!" before the operator switches over to another line. Leing a message When the person you're calling isn't ailable, be prepared to lee a message. You might use voicemail (a digital voice recording system) or an answering machine (a machine that records messages onto a tape). If you're talking to an operator, they'll ask: "Would you like to lee a message?" Or you can say, "May I lee a message?" Be sure to lee your phone number if you want the person to return your call. This is called a call back number. Asking the speaker to slow down If you're not sure you'll understand everything in English, be honest. Tell the speaker immediately: "My English isn't very strong, could you please speak slowly?" Most people will appreciate your honesty and will be happy to oblige. Write it down If you're nervous about telephoning in English, it's helpful to prepare a script. Write out a brief outline of what you need to say. You can use it to organize your thoughts beforehand and as a reference if you get confused during the call. Remember your manners It's very important to sound polite on the telephone. Use phrases like , 'Could you', and 'Please' when making requests. And always remember to finish a conversation with 'Thank you' and 'Goodbye'![收起]
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luscar
luscar
2015-03-16 14:57:46
请问那个 起名字 的活动出结果了吗[收起]
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luscar
luscar
2015-01-19 14:49:45
易拓之家[收起]
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luscar
luscar
2015-01-19 14:44:50
以下都是我想的: 快拓、聚源、畅游数据,霹雳之家,先锋数据,霹雳风暴,马上查,快易查,喜赢数据,宅急邦,献丑了,能否获得优秀奖 哇哈哈[收起]
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luscar
luscar
2015-01-16 14:30:24
易拓博士[收起]
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luscar
luscar
2015-01-16 13:24:53
哈哈 还好啦[收起]
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已经是最后了
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