Trained teachers are essential and must be paid award salaries which together with "oncosts" is a large part of the school's expenditure.

受過訓(xùn)練的老師是必不可少的国产三区女同。必須付給老師的薪金以及其他&間接成本&占據(jù)了大部分學(xué)校的開支。

This is due to the decrease in the hormone oestrogen after the menopause, which is essential for healthy bones.

這是由于減少99re视频在线这里精品，在荷爾蒙雌激素后，更年期人妻亚洲一区，這是必不可少的健康骨骼。

Basic numeracy skills, such as the ability to tell the time, count money and carry out simple arithmetic , became essential in this new urban lifestyle.

基本算術(shù)技能性爱视频网站入口，如能告訴的時間，金錢和伯爵進(jìn)行簡單的算術(shù)亚洲欧美综合图片，成為必不可少的這個新的城市生活方式啪啪视频黄色。

It is essential, therefore, to prevent or treat pain in neonates, the authors write.

它是必不可少的不卡免费A级毛片，因此国产精品亚洲视频，以防止或治療疼痛的新生兒，作者寫免费黄污网站。

By virtue of equality, credibility, cooperation and development business philosophy has always been to use the reputation of Service legislation in order to brand a market, to create the industry's essential quality binding!!!

憑借平等、誠信日韩图片精品午夜在线观看免费网站、合作、發(fā)展的經(jīng)營理念欧美AⅤ免费福利视频，一直以來用服務(wù)立聲譽(yù)，以品牌創(chuàng)市場欧美性爱网络，竭力打造業(yè)界必不可少的裝釘精品Ｅ访佬园悠怠！亚州中文字幕精品一区！

In the wind - solar hybrid power supply System, because of wind and solar intermittent, random, regional differences, as well as the time difference makes energy storage devices has become a complementary scenery in the entire power generation system in one of essential components.

在風(fēng)光互補(bǔ)發(fā)電系統(tǒng)中，由于風(fēng)能和太陽能的間歇性国产日韩一本无码免费专区、隨機(jī)性、地區(qū)差異性以及時間的差異性黄片一级片一区，使得儲能裝置成了在整個風(fēng)光互補(bǔ)發(fā)電系統(tǒng)中必不可少的部件之一。

Defense and energy must become our trademark if we have any shot of reaching the post season.

如果我們還想打季后賽欧美A黑人AⅤ精品视频，那么記住防守和能量也是必不可少的。

Therefore, in international trade, a well-written business letter is essential.

所以在國際貿(mào)易中国产呦系列久久精品，一封好的商務(wù)函電便變得必不可少免费看操网站。

I think an appreciation of that kind of beauty is essential to our life, for beauty, it seems to me, is what is old and mellow and well-smoked.

我認(rèn)為在我們的生活中欣賞那種美必不可少。因?yàn)閷ξ叶悦朗蔷玫娜毡竟膊匏蚰蚴悠担己竦暮脱频煤芎玫臇|西。

An accurate and well-adapted simulation method of projection data for cone-beam CT, which can describe the details of each tomography, is proposed in this paper.

在重建算法的研究過程中国产a在无码线精品，模擬投影數(shù)據(jù)是必不可少的一部分又大又粗又爽的视频网站，一方面可以避免實(shí)測投影數(shù)據(jù)的誤差，為后繼CT重建算法提供理想的投影數(shù)據(jù)影视先锋资源av无码专区；另一方面也可以根據(jù)需要有選擇地模擬失真如：探測器偏移欧美黄网站色视频免费人、旋轉(zhuǎn)自拍日韩精品视频在线播放、響應(yīng)不一致，射線源